(HM digital product)

Package includes:

1 Hydro Master Monitor

1 Wall mount bracket

1 EC/TDS/Temp Sensor

1 PH probe

1 USB power adapter & cable

2 probe holder float discs

1 PH-STOR, PH-4, PH-7, CP-1000ppm liquid packet

1 user's guide

HM-501 pH/Conductivity/TDS/Temp HydroMaster Monitor

The HM-501 monitors pH, Electrical Conductivity (EC), Total Dissolved Solids TDS) and temperature with very high accuracy. This instrument can be calibrated with various buffer solutions, and is equipped with automatic buffer recognition for user convenience. The touch-screen LCD makes it user-friendly, and features automatic light detection making it easy to view in dark environments.

Technical Specification:

 (HM digital product)

FEATURES:
Measures Potential Hydrogen (pH), Electrical Conductivity (EC), Total Dissolved Solids (TDS), Salinity and Temperature.
Five scales: pH, μS, mS, ppm 0.5 (NaCl) Scale & 0.7 (442™) Scale.
Automatic Temperature Compensation (ATC) using three temperature coefficients.
Digital Calibration (push button) to any point within the meter’s range.
Auto-off function, data-hold function and low-battery indicator.
Large and easy-to-read LCD Screen.
Displays 3 parameters (pH/EC or TDS/Temp) simultaneously.
Replaceable Sensors (model SP-C2 for Conductivity, SP-P5 for pH).
Factory Calibrated (pH/EC/TDS).
Includes protective rubber boot, 2 (AA) alkaline batteries, pH 4 & 7 calibration solutions, pH storage solution.

HM-200: Portable pH/EC/TDS/Temp Monitor
HM-200 is a versatile portable pH/EC/TDS/Temp monitor ideal for all water quality testing, hydroponics, water purification applications, wastewater regulation, aquaculture, colloidal silver, labs & scientific testing, pools & spas, ecology testing, boilers & cooling towers, water treatment and more.
　

Specification
1. Measurement Range
• pH: 0.0 - 14.0
• Temperature: 0 - 55 °C / 32 - 130 °F
• TDS: 0 - 9990 ppm
• EC: 0 - 9990 μS / 0 - 20.00 mS
2. Automatic Temperature Compensation Range (ATC)
• ATC: 0.0 - 60.0 °C
3. Accuracy
• pH: ± 0.1 pH
• Temp: ± 1 °C / ˚F
• EC/TDS: ± 2 %
4. Measurement Scales
• pH: pH
• Temp: °C / °F
• TDS: ppm (NaCl) 0.5 scale / ppm (442^TM)) 0.7 scale
• EC: μS / mS
5. Resolution
• pH: 0.1 pH
• Temp: 0.1°C / 0.1 °F
• TDS: TDS: ppm: 0.1ppm (0 - 99.9ppm) / 1 ppm (100 - 999ppm)
/ 10ppm (1000-9990 ppm)
• EC: μS: 0.1 μS (0 - 99.9 μS) / 1 uS (100 - 999 μS) / 10μS (1000 - 9990 μS)
mS: 0.01 mS (0.01 - 20.00 mS)
6. Data Storage: Up to 20 readings
7. Auto Shut-Off: After 5 minutes
8. Power Source: 2 Double A (AA) batteries
9. Service Environment: 0 - 50 °C / RH 80 %
10. Display: Main LCD Screen
11. Probe: ABS with Electrodes Conductivity Sensor / Single Junction Ag/AgCl pH Sensor
12. Sensor Cables: 2m (80 inch) Non-shielded and Coaxial Cable
13. Dimensions: Approx. 5.5 x2.6 x 1.1 inches / 14 x 6.6 x 2.8 cm
14. Weight: Approx 212 g (7.5 oz) for body (batteries and cover included) /
155 g (5.5 oz) for two probes

(HM digital product)

HM-100: Portable pH/EC/TDS/Temp Monitor

HM-100 is capable of displaying the pH, EC and temperature values at the same time.
In addition, HM-100 is suitable in countinous monitoring of nutrient solution to control
parameters important in plant growth, which makes it adequate equipment in hydroponics farming. Its application stretches from hydroponics to industrial and water quality areas.

Technical Specification:

1. Range
• pH: 0.1 - 14.0 pH.
• Temperature: 0.0 - 80.0 °C / 32.0 - 176.0 °F.
• TDS: 0 - 9990 ppm.
• EC: 0 - 10.00 mS.
2. Resolution
• pH: 0.1 pH.
• Temperature: 0.1°C / 0.1 °F.
• TDS: ppm: 1 ppm (0-999ppm) / 10ppm (1000-9990 ppm).
• EC: mS: (0-10.00 mS).
3. Accuracy
• pH: ± 0.1 pH.
• Temperature: ± 1 °C / ˚F.
• EC/TDS: ±2 %.
4. Units
• pH: pH.
• Temperature: °C / °F.
• TDS: ppm 0.5 scale / (442^TM) 0.7 scale.
• EC: mS.
5. Automtic Temperature Compesation (ATC) range: 0.0 - 60.0 °C.
6. Data store: Max. 6 data values.
7. Alarm: LOW, HIGH. Assigned separately.
9. Power: 5V/1A.
10. Usage environment: 0 - 50 °C / RH 80 %.
11. Sensor: Electroconductivity Sensor / Single juction Ag/AgCl pH sensor.
12. Weight: 285g (excl. sensors / accessories).

PH-010 Folding Three In One pH Tester

Folding design feature to use expediently
Replaceable pH electrode
Clear LCD display featuring both pH, temperature and humidity
The PH-0101 offers increased accuracy when measuring solutions at different temperatures as it automatically measures the temperature and compensates the pH reading accordingly.

PH-8414 pH/Temp/ORP Meter

High Accuracy Portable pH/Temp/ORP Meter

(noted: ORP function need buy ORP electrode to actualize, standard delivery is without ORP electrode. If with ORP electrode, the model number is ORP-8414)

LCD backlight

Low battery indication

(The red color function is new adding than old model PH-013)

PH-013M Portable pH/mV/ºC Meter

(Same function as PH-8414, but smaller design)

PH-113 Portable pH/Temperature meter

High-precision; small size; simple, easy accessibility and the operation panel that makes machines easy to understand, easy to operate. Automatic temperature compensation, with the help of the temperature probe, can automatically correct the impact of temperature on the pH. Accurate thermometer, the temperature of an independent probe, the sensor can be quickly tested solution temperature. BNC with the composite electrode and 9 V battery, around the world to facilitate the replacement of batteries and electrodes. Economical and practical, fully in line with a wide range of industries need to test.

Technical Specification:

PH-012 Portable pH Meter

Features:
2 points push-button calibration with auto-buffer recognition.
Automatically calculates and displays electrode slopes that helps you
decide whether to replace pH electrode.
Selectable either temperature units between degrees Celsius (°C) and
degrees Fahrenheit (°F).
Automatic Temperature Compensation (ATC) ensures highly accurate
measurements over the entire pH range.
Manual temperature calibration provides accurate temperature values
Hold function freezes the current displayed values for easy viewing
and recording.
Help message as a operational guide to helps you understand how to
use meter.
Setup menu allows user customizes temperature units, date and time
to meet measurement requirements.
Expanded memory stores and recalls up to 50 readings.
Built-in real-time clock stamps stored data to meets GLP standards.
Stored data can be transferred into computer via USB communication
interface.
SR220 is an economical portable pH/mV meter designed for
outdoor applications, which is equipped with a large LCD and
a standard BNC connecter. The meter is capable of connecting
the various combination pH electrodes to measures pH values
of solutions.

SR220 Portable pH/mV/°C/°F Meter

Specification:

Features:
During the pH mode, Up to 5 points push-button calibration with auto-
buffer recognition.
Selectable pH buffer standards and temperature units.
Automatically calculates and displays electrode slope after calibration.
Automatic Temperature Compensation (ATC) ensures highly accurate
measurements over the entire range.
Calibration due reminder prompts you to calibrate the meter regularly.
During ORP mode, Single point offset calibration allows user adjusts displayed value to a known standard.
Absolute or Relative millivolt (R.mV) measurement provides accurate ORP readings.
Automatic endpoint function freezes the stable measured values for easy reading and recording data.
Manual temperature calibration provides accurate temperature value.
Help message as a operational guide to helps you understand how to use meter.

SR221 is a high performance portable pH/ORP meter designed for outdoor applications. The meter contains a built-in setup menu that provides many advanced and useful options to improves accuracy of measurements and simplify operations.

SR221 Portable pH/ORP/°C/°F Meter

Specification:

Features:
During the pH mode, Up to 5 points push-button calibration with auto-
buffer recognition.
Selectable pH buffer standards and temperature units.
Automatically calculates and displays electrode slope after calibration.
During ORP mode, Single point offset calibration allows user adjusts
displayed value to a known standard.
Absolute or Relative millivolt (R.mV) measurement provides accurate
ORP readings.
During the ion mode, 2 to 5 points push-button calibration from low to
high concentrations.
Selectable multiple concentration units, including ppm, mg/L and mol/L.
Direct readout ion concentration simplifies the elaborate measurement
process.
Automatic Temperature Compensation (ATC) ensures highly accurate
measurements over the entire range.
Automatic endpoint function freezes the stable measured values for
easy reading and recording data.
Calibration due reminder prompts you to calibrate the meter regularly.
Manual temperature calibration provides accurate temperature value.
Help message as a operational guide to helps you understand how
to use meter.

SR320 is a multi-parameter ion meter used for measuring the
ion concentration and pH value of liquids. The meter is equipped
with a BNC connecter that can connects various combination
Ion Selective Electrodes.

SR320 Portable pH/ORP/Ion/°C/°F Meter

Specification:

SR321 Portable Ion/mV/°C/°F Meter

Features:
2 to 5 points push-button calibration from low to high concentrations.
Selectable multiple concentration units, including ppm, mg/L and mol/L.
Direct readout ion concentration simplifies the elaborate measurement process.
mV measurement allows user to check performance of ion electrode.
Automatic Temperature Compensation (ATC) ensures highly accurate
measurements over the entire range.
Automatic endpoint function freezes the stable measured values for easy reading and recording data.
Calibration due reminder prompts you to calibrate the meter regularly.
Help message as a operational guide to helps you understand how to use meter.
Setup menu lets user customize calibration points, ion concentration units, stability conditions, temperature units, date and time to meet measurement requirements.
Reset function can resumes all settings to factory default values.
Expanded memory stores and recalls up to 500 readings.
Built-in real-time clock stamps stored data to meets GLP standards.
Stored data can be transferred into computer via USB communication interface.

SR321 Portable Ion/mV/°C/°F Meter

Features:
2 to 5 points push-button calibration from low to high concentrations.
Selectable multiple concentration units, including ppm, mg/L and mol/L.
Direct readout ion concentration simplifies the elaborate measurement process.
mV measurement allows user to check performance of ion electrode.
Automatic Temperature Compensation (ATC) ensures highly accurate
measurements over the entire range.
Automatic endpoint function freezes the stable measured values for easy reading and recording data.
Calibration due reminder prompts you to calibrate the meter regularly.
Help message as a operational guide to helps you understand how to use meter.
Setup menu lets user customize calibration points, ion concentration units, stability conditions, temperature units, date and time to meet measurement requirements.
Reset function can resumes all settings to factory default values.
Expanded memory stores and recalls up to 500 readings.
Built-in real-time clock stamps stored data to meets GLP standards.
Stored data can be transferred into computer via USB communication interface.

Order Code and Accessories:

SR900 Series Portable Multi-parameter Water Quality Meter

Order Code and Accessories:

Order Code	Accessories
SR900P-UK	P11 Glass pH Electrode (Made in UK), K10 Conductivity Electrode (Made in UK), DO100 DO Probe (Made in US), DO electrode membrane cap kit, PT-10 Temperature Probe, pH Buffer Pouches (pH4.01, 7.00, 10.01), Conductivity Calibration Solutions (146uS/cm, 1413uS/cm, 12.88mS/cm), Carrying Case and “AA” Batteries
SR900P-CN	E65-1-BNC Glass pH Electrode, CON-1 Conductivity Electrode (K=1), DO100 DO Probe (Made in US), DO electrode membrane cap kit, PT-10 Temperature Probe, pH Buffer Pouches (pH4.01, 7.00, 10.01), Conductivity Calibration Solutions (146uS/cm, 1413uS/cm, 12.88mS/cm), Carrying Case and “AA” Batteries
SR901P-UK	P11 Glass pH Electrode (Made in UK), K10 Conductivity Electrode (Made in UK), PT-10 Temperature Probe, pH Buffer Pouches (pH4.01, 7.00, 10.01), Conductivity Calibration Solutions (146uS/cm, 1413uS/cm, 12.88mS/cm), Carrying Case and “AA” Batteries
SR901P-CN	E65-1-BNC Glass pH Electrode, CON-1 Conductivity Electrode (K=1), PT-10 Temperature Probe, pH Buffer Pouches (pH4.01, 7.00, 10.01), Conductivity Calibration Solutions (146uS/cm, 1413uS/cm, 12.88mS/cm), Carrying Case and “AA” Batteries
SR902P-UK	P11 Glass pH Electrode (Made in UK), K10 Conductivity Electrode (Made in UK), PT-10 Temperature Probe, pH Buffer Pouches (pH4.01, 7.00, 10.01), Conductivity Calibration Solutions (146uS/cm, 1413uS/cm, 12.88mS/cm), Carrying Case and “AA” Batteries
SR902P-CN	E65-1-BNC Glass pH Electrode, CON-1 Conductivity Electrode, PT-10 Temperature Probe, pH Buffer Pouches (pH4.01, 7.00, 10.01), Conductivity Calibration Solutions (146uS/cm, 1413uS/cm, 12.88mS/cm), Carrying Case and “AA” Batteries
SR903P-UK	P11 Glass pH Electrode (Made in UK), DO100 DO Probe (Made in US), DO electrode membrane cap kit, PT-10 Temperature Probe, pH Buffer Solutions (pH4.01, 7.00, 10.01), Carrying Case and “AA” Batteries
SR903P-CN	E65-1-BNC Glass pH Electrode, DO100 DO Probe (Made in US), DO electrode membrane cap kit, PT-10 Temperature Probe, pH Buffer Solutions (pH4.01, 7.00, 10.01), Carrying Case and “AA” Batteries
SR904P-UK	K10 Conductivity Electrode (Made in UK), DO100 DO Probe (Made in US), DO electrode membrane cap kit, PT-10 Temperature Probe, Conductivity Calibration Solutions (146uS/cm, 1413uS/cm, 12.88mS/cm), Carrying Case and “AA” Batteries
SR904P-CN	CON-1 Conductivity Electrode, DO100 DO Probe (Made in US), DO electrode membrane cap kit, PT-10 Temperature Probe, Conductivity Calibration Solutions (146uS/cm, 1413uS/cm, 12.88mS/cm), Carrying Case and “AA” Batteries

Extech PH300 is OEM made based on ours this meter SR711. They use totally same IC borard and shell, and technology to produce.

Package includes

MODEL: SR711 pH/mV/Temp. 3-in-1 Portable Meter

Features:

-Built-in microprocessor chip, with the intelligent functions of automatic calibration, automatic temperature compensation, data storage, function setting and automatic self-diagnose, auto power off and low voltage display etc.

-Adopts digital filter and step slipping technology to intelligently improve meter's response speed and result accuracy. ""will appear when reading to be stable.

-Automatically recognize 13 kinds of pH standard buffer solution. User can choose anyone from three series of buffer solutions: Europe & U.S.A. series, NIST series, China series.

-Purified water and ammonia added purified water pH measuring mode can be set up, especially suitable for the fields of electric power and petrochemical etc.

-Meter's circuit board adopts SMT film-covering technology to improve meter's production reliability.

-Meter has the back light LCD display monitor.

-Dustproof and waterproof meter meets IP57 rating.

Specifications:

Prominent Features

-Double parameters meter, equips with pH and ORP electrode,calibration solution and special carrying case, easy to use.

-Built-in microprocessor chip, with the intelligent functions of automatic calibration, automatic temperature compensation, data storage, function setting and automatic self-diagnose, auto power off and low voltage display etc.

-Adopts digital filter and step slipping technology to intelligently improve meter's response speed and result accuracy, "" will appear when reading to be stable.

-Automatically recognize 13 kinds of pH standard buffer solution. User can choose anyone from three series of buffer solutions: Europe & U.S.A. series, NIST series, or China series.

-Purified water and ammonia added purified water pH measuring mode can be set up, for this two special pH measuring modes, besides the general slope temperature compensation, also added function of nonlinearity solution temperature compensation to make measurement more accurate, especially suitable for the fields of electric power and petrochemical etc.

-Meter's circuit board adopts SMT film-covering technology to improve meter's production reliability.

-Meter has the back light LCD display monitor.

-Dustproof and waterproof meter meets IP57 rating.

Model: SR721 pH/ORP/Temp. Meter

Technical parameter

1. pH:

2. ORP:

3. Other Technical Parameters:

Package includes

Extech EC600 is OEM made based on ours this meter SR723. They use totally same IC borard and shell, and technology to produce.

Prominent Features

-Double parameters meter, with pH electrode, conductivity electrode, and with calibration solution and special carrying case, easy to use.

-Built-in microprocessor chip, with the intelligent functions of automatic calibration, automatic temperature compensation, data storage, function setting and automatic self-diagnose, auto power off and low voltage display etc. 

-Adopts digital filter and step slipping technology to intelligently improve meter's response speed and result accuracy. "" will appear when reading to be stable.

-Automatically recognize 13 kinds of pH standard buffer solution. User can choose anyone from three series of buffer solutions: Europe & U.S.A. series, NIST series, China series.

-High purified water and ammonia added purified water pH measuring mode can be set up, for this two special pH measuring modes, besides the general slope temperature compensation, also added function of nonlinearity solution temperature compensation to make measurement more accurate, especially suitable for the fields of electric power and petrochemical etc.

-Adopts advanced automatic frequency convertible and voltage regulation technology to enlarge the measuring range of conductivity electrode which constant K=1 to 10 times. It can meet measuring accuracy requirement for range within 0 to 200mS/cm by using only one-point calibration. It is the particular one–point calibration function for this meter.

-Automatically recognize 8 kinds of conductivity standard solution. User can choose anyone from two series of standard solutions: Europe & USA series and CHINA series.

-Automatically select conductivity measuring range, the meter will do non-linearity temperature compensation test for purified and high purified water less than 10uS/cm, which greatly improve the measuring accuracy. It is especially suitable for use in fields of electric power, microelectronics and medicine.

-Meter's circuit board adopts SMT film-covering technology to improve meter's production reliability.

-Meter has the back light LCD display monitor.

1-Dustproof and waterproof meter meets IP57 rating.

Model: SR723 pH/mV/Conductivity/TDS/Sal./Res./Temp.  7-in-1 Meter

Technical parameter

1. pH:

2. mV:

3. Conductivity:

4. Other Technical Parameters:

Package includes

Prominent Features

1. Double parameters meter, with pH and DO electrode, also with calibration solution and special carrying case, easy to use.

2. Built-in microprocessor chip, with the intelligent functions of automatic calibration, automatic temperature compensation, data storage, function setting and automatic self-diagnose, auto power off and low voltage display etc.

3. Adopts digital filter and step slipping technology to intelligently improve meter's response speed and result accuracy. "" will appear when reading to be stable.

4. It automatically recognizes 13 kinds of pH standard buffer solution. User can choose anyone from three series of buffer solutions: Europe & U.S.A. series, NIST series and China series.

5. Purified water and ammonia added purified water pH measuring mode can be set up, for this two special pH measuring modes, besides the general slope compensation, also added function of nonlinearity temperature compensation for pH values of solution to make measurement more accurate, especially suitable for use in the fields of electric power and petrochemical etc.

6. Equipped with new type of DO electrode with temperature and salinity sensor which makes DO measuring mode has auto temperature compensation, auto salinity compensation and manual barometric pressure compensation. It's easy to use and accurate to measure.

7. Polarogram type DO electrode has special electrode calibration cap. Only needs 3 to 5 minutes for electrode polarization. Electrode adopts combination diaphragm cap which very convenient to use. Each DO electrode equips with three spare diaphragms caps.

8. Meter's circuit board adopts SMT film-covering technology to improve meter's production reliability.

9. Meter has the blue back light LCD display monitor.

10. Dustproof and waterproof meter meets IP57 rating.

Model: SR725  pH/mV/DO/Temp. 4-in-1 Meter

Technical parameter

1. pH:

2. mV:

3. Dissolved Oxygen:

4. Other Technical Parameters:

Package includes

Prominent Features

1. Multi-parameter meter, equipped with pH electrode, ORP electrode, conductivity electrode, equips with calibration solution and special carrying case, easy to use.

2. Built-in microprocessor chip, with the intelligent functions of automatic calibration, automatic temperature compensation, data storage, function setting and self-diagnose information, auto power off and low voltage display etc.

3. Adopts digital filter and step slipping technology to intelligently improve meter's response speed and result accuracy. "" will appear when reading to be stable.

4. Automatically recognize 13 kinds of pH standard buffer solution. User can choose anyone from three series of buffer solutions: Europe & U.S.A. series, NIST series, China series.

5. High purified water and ammonia added purified water pH measuring mode can be set up, for this two special pH measuring modes, besides the general slope temperature compensation, also added function of nonlinearity solution temperature compensation to make measurement more accurate, especially suitable for the fields of electric power and petrochemical etc.

6. Adopts advanced automatic frequency convertible and voltage regulation technology to enlarge the measuring range of conductivity electrode which constant K=1 to 10 times. It can meet measuring accuracy requirement for range within 0 to 200mS/cm by using only one-point calibration. It is the particular one–point calibration function for this meter.

7. Automatically recognize 8 kinds of conductivity standard solution. User can choose anyone from two series of standard solutions: Europe & USA series and China series.

8. Automatically select conductivity measuring range, the meter will do non-linearity temperature compensation test for purified and high purified water less than 10uS/cm, which greatly improve the measuring accuracy. It is especially suitable for use in fields of electric power, microelectronics and medicine.

9. Meter's circuit board adopts SMT film-covering technology to improve meter's production reliability.

10. Meter has the blue backlight LCD display.

11. Dustproof and waterproof meter meets IP57 rating.

Model: SR731 pH/ORP/Conductivity/TDS/Sal./Res./Temp. 7-in-1 Meter

Technical parameter

1. pH:

2. ORP(mV):

3. Conductivity:

4. Other Technical Parameters:

Package includes

Extech DO700 is OEM made based on ours this meter SR736. They use totally same IC borard and shell, and technology to produce.

Prominent Features

1. Multi-parameter meter, equipped with pH electrode, ORP Electrode, conductivity electrode, temperature electrode, DO

electrode, when connect the electrode to the meter, the meter can automatically know the electrode, easy to use.

2. Built-in microprocessor chip.. Its features up to automatic calibration, automatic temperature compensation, data storage, auto power off, low voltage indication, functions setting and automatic self-diagnose etc. 

3. Adopts digital filter and step slipping technology to intelligently improve meter's response speed and result accuracy. "" will appear when reading to be stable.

4. Automatically recognize 13 kinds of pH standard buffer solution. User can choose anyone from three series of buffer solutions: Europe & U.S.A. series, NIST series, and China series.

5. High purified water and ammonia added purified water pH measuring mode can be set up, for this two special pH measuring modes, besides the general slope temperature compensation, also added function of nonlinearity solution temperature compensation to make measurement more accurate, especially suitable for the fields of electric power and petrochemical etc.

6. Adopts advanced automatic frequency convertible and voltage regulation technology to enlarge the measuring range of conductivity electrode which constant K=1 to 10 times. It can meet measuring accuracy requirement for range within 0 to 200mS/cm by using only one-point calibration. It is the particular one–point calibration function for this meter.

7. Automatically recognize 8 kinds of conductivity standard solution. User can choose anyone from two series of standard solutions: Europe & USA series and CHINA series.

8. Automatically select conductivity measuring range, the meter will do non-linearity temperature compensation test for purified and high purified water less than 10uS/cm, which greatly improve the measuring accuracy. It is especially suitable for use in fields of electric power, microelectronics and medicine.

9. Equips new type of DO electrode with temperature and salinity sensor which has function of automatic temperature compensation and automatic salinity compensation as well as manual Atmospheric pressure compensation inside meter, easy to use, accurate to measure.

10. Polarogram type DO electrode has special electrode calibration cap. Only needs 3 to 5 minutes for electrode polarization. Electrode adopts combination diaphragm cap which very convenient to use. Each DO electrode equips with three spare diaphragms caps.

11. Meter's circuit board adopts SMT film-covering technology to improve meter's production reliability.

12. Meter has the back light LCD display monitor.

13. Dustproof and waterproof meter meets IP57 rating.

Model: SR736 pH/mV/Conductivity/TDS/Sal./Res./DO/Temp. 8-in-1 Meter

Technical parameter

1. pH:

2. Conductivity:

Prominent Features

1. Multi-parameter meter, equipped with pH electrode, ORP Electrode, conductivity electrode, temperature electrode, DO

electrode, when connect the electrode to the meter, the meter can automatically know the electrode, easy to use.

2. Built-in microprocessor chip.. Its features up to automatic calibration, automatic temperature compensation, data storage, auto power off, low voltage indication, functions setting and automatic self-diagnose etc.

3. Adopts digital filter and step slipping technology to intelligently improve meter's response speed and result accuracy. ""  will appear when reading to be stable.

4. Automatically recognize 13 kinds of pH standard buffer solution. User can choose anyone from three series of buffer solutions: Europe & U.S.A. series, NIST series, and China series.

5. High purified water and ammonia added purified water pH measuring mode can be set up, for this two special pH measuring modes, besides the general slope temperature compensation, also added function of nonlinearity solution temperature compensation to make measurement more accurate, especially suitable for the fields of electric power and petrochemical etc.

6. Adopts advanced automatic frequency convertible and voltage regulation technology to enlarge the measuring range of conductivity electrode which constant K=1 to 10 times. It can meet measuring accuracy requirement for range within 0 to 200mS/cm by using only one-point calibration. It is the particular one–point calibration function for this meter.

7. Automatically recognize 8 kinds of conductivity standard solution. User can choose anyone from two series of standard solutions: Europe & USA series and CHINA series.

8. Automatically select conductivity measuring range, the meter will do non-linearity temperature compensation test for purified and high purified water less than 10uS/cm, which greatly improve the measuring accuracy. It is especially suitable for use in fields of electric power, microelectronics and medicine.

9. Equips new type of DO electrode with temperature and salinity sensor which has function of automatic temperature compensation and automatic salinity compensation as well as manual Atmospheric pressure compensation inside meter, easy to use, accurate to measure.

10. Polarogram type DO electrode has special electrode calibration cap. Only needs 3 to 5 minutes for electrode polarization. Electrode adopts combination diaphragm cap which very convenient to use. Each DO electrode equips with three spare diaphragms caps.

11. Meter's circuit board adopts SMT film-covering technology to improve meter's production reliability.

12. Meter has the back light LCD display monitor.

13. Dustproof and waterproof meter meets IP57 rating.

Model: SR751 pH/ORP/Conductivity/TDS/Sal./Res./DO/Temp. 8-in-1 Meter

Technical parameter

1. pH:

2. ORP(mV):

3. Conductivity:

4. Dissolved Oxygen:

5. Other Technical Parameters:

Package includes

The most cost effective portable pH, suited for industrial and mining factories, power plant, water treatment project, environmental protection industry, etc, especially suited in field and on-site.

INTRODUCTION:

1. 1-3 point automatic calibration, the meter provides calibration guide and automatic checking function.
2. The meter is able to recognize up to 12 types of pH standard buffer solutions. There are three options of standard buffer solutions: USA series, NIST series and Chinese series (CH), there is also customer-defined solution calibration.
3. The meter provides two special modes for pure water and pure water mixed with ammonia. These special modes offer temperature compensation for pH value, especially suitable or the electricity and petrochemical industries.
4 Equipped with calibration solution and portable case and suited in field and on site.
5.Meter meets IP57 rating.

SR811 Portable pH Meter

SPECIFICATION:

The most cost effective portable conductivity meter, measurement of conductivity, TDS, salinity and resistivity of water solutions, suited for industrial and mining factories, water treatment engineering and environmental protection field, especially suited in field and on-site.
1) 4 calibration points can be chosen, the meter provides calibration guide and automatic checking function.
2) The meter is able to switch among conductivity, TDS, salinity and resistivity measurement mode. For TDS measurement, the coefficient is adjustable.
3) The meter is able to recognize up to 8 types of conductivity standard solutions. There are two options of standard buffer solutions: USA series and Chinese series (CH), there is also customer-defined solution calibration.
4) The meter has an automatic range feature with automatic non-linear temperature compensation for pure water and high purity water with conductivity values lower than 10uS/cm greatly improving accuracy and suitable for the electricity, microelectronics and pharmaceutical industries.
5) Equipped with calibration solution and portable case and suited in field and on site.
6) Meter meets IP57 rating.

SR813 portable conductivity meter
SPECIFICATION:

Suited for aquaculture, water source monitoring, sewage treatment and environmental protection monitoring, etc, especially suited in field and on-site.
1) DO electrode offers a built-in temperature and salinity sensor with automatic temperature compensation and automatic salinity ompensation as well as manual barometric pressure compensation. The measurement is more accurate
2) Polarographic DO electrode with special DO calibration cover, electrode polarization only requires 3-5 min, three combined membranes convenient to renew.
3) Equipped with calibration solution and portable case and suited in field and on site.
4) Meter meets IP57 rating.
　

SX816 portable DO meter
SPECIFICATION:

Measurement of parameters such as pH, mV, conductivity, TDS, salinity, resistivity and temperature of water solution, the most cost effective portable analytical instrument.
1) Double-parameter meter, equipped with pH electrode and conductivity electrode, automatic identification of electrode by meter.
2) The meter is able to recognize up to 12 types of pH standard buffer solutions. There are three options of standard buffer solutions: USA series, NIST series and Chinese series (CH), there is also customer-defined solution calibration.
3) The meter provides two special modes for pure water and pure water mixed with ammonia. These special modes offer temperature compensation for pH value, especially suitable for the electricity and petrochemical industries.
4) The meter is able to switch among conductivity, TDS, salinity and resistivity measurement mode. For TDS measurement, the coefficient is adjustable.
5) The meter is able to recognize up to 8 types of conductivity standard solutions. There are two options of standard buffer solutions: USA series and Chinese series (CH), there is also customer-defined solution calibration.
6) The meter has an automatic range feature with automatic non-linear temperature compensation for pure water and high purity water with conductivity values lower than 10uS/cm greatly improving accuracy and suitable for the electricity, microelectronics and pharmaceutical industries.
7) Equipped with calibration solution and portable case and suited in field and on site.
8) Meter meets IP57 rating.

SR823 portable pH/conductivity meter
SPECIFICATION:

The most cost effective portable pH+Dissolved Oxygen double-parameter meter, suited for industrial and mining factories, power plant, aquaculture and environmental protection field, especially suited in field and on-site.
1) Double-parameter meter, equipped with pH electrode and conductivity electrode, automatic identification of electrode by meter.
2) The meter is able to recognize up to 12 types of pH standard buffer solutions. There are three options of standard buffer solutions: USA series, NIST series and Chinese series (CH), there is also customer-defined solution calibration.
3) The meter provides two special modes for pure water and pure water mixed with ammonia. These special modes offer temperature compensation for pH value, especially suitable for the electricity and petrochemical industries.
4) DO electrode offers a built-in temperature and salinity sensor with automatic temperature compensation and automatic salinity compensation as well as manual barometric pressure compensation. The measurement is more accurate
5) Polarographic DO electrode with special DO calibration cover, electrode polarization only requires 3-5 min, three combined membranes convenient to renew.
6) Equipped with calibration solution and portable case and suited in field and on site.
7) Meter meets IP57 rating.

SR825 portable pH/DO meter
SPECIFICATION:

Measurement of parameters such as pH, conductivity, TDS, salinity, resistivity, dissolved oxygen and temperature of water solution, the most cost effective portable analytical instrument.
Double-parameter meter, equipped with pH electrode and conductivity electrode, automatic identification of electrode by meter.
1) The meter is able to recognize up to 12 types of pH standard buffer solutions. There are three options of standard buffer solutions: USA series, NIST series and Chinese series (CH), there is also customer-defined solution calibration.
2) The meter provides two special modes for pure water and pure water mixed with ammonia. These special modes offer temperature compensation for pH value, especially suitable for the electricity and petrochemical industries.
3) The meter is able to switch among conductivity, TDS, salinity and resistivity measurement mode. For TDS measurement, the coefficient is adjustable.
4) The meter is able to recognize up to 8 types of conductivity standard solutions. There are two options of standard buffer solutions: USA series and Chinese series (CH), there is also customer-defined solution calibration.
5) The meter has an automatic range feature with automatic non-linear temperature compensation for pure water and high purity water with conductivity values lower than 10uS/cm greatly improving accuracy and suitable for the electricity, microelectronics and pharmaceutical industries.
6) DO electrode offers a built-in temperature and salinity sensor with automatic temperature compensation and automatic salinity compensation as well as manual barometric pressure compensation. The measurement is more accurate
7) Polarographic DO electrode with special DO calibration cover, electrode polarization only requires 3-5 min, three combined membranes convenient to renew.
8) Equipped with calibration solution and portable case and suited in field and on site.
9) Meter meets IP57 rating.

SR836 portable pH/Cond./DO meter
SPECIFICATION:

SR811-SS Portable pH Meter for Food and Dairy Products

The SR811-SS Portable pH Meter is an outstanding combination of the advanced digital processing technology, software design, and electrochemical sensor technology, specially designed for the pH measurement of food and dairy product (meat, cheese, dairy products, fruit, etc.), canning, and other semi-solids (such as soil). Its LabSen® spear electrode adopts durable food-grade stainless steel sheath, solid electrolyte, and long-life reference electrode, making the probe hard to be contaminated and maintenance-free.

Features:

* Equipped with LabSen 753 Stainless Steel Spear pH Electrode (Swiss technology), designed for professional food/semi-solids pH measurement, hard to be contaminated and maintenance-free.
* Accurate Measurement: Accuracy: ±0.01 pH, Range: -2.00-19.99 pH, ATC, Auto Calibration, Advanced digital processing technology, supports stable reading/auto-hold display mode.
* Intelligent Functions: Self-Diagnosis of out-of-range value and electrode invalidation, calibration reminders, calibration date checking, easy parameter setting.
* Data Processing: GLP standard data management, 500 data sets of storage, manual/auto timing storage, USB charging and data output, data protection in case of a power outage
* Reliable Structure Design: large LCD, the foldable stand allows use as a benchtop, soft silicone case gives you a nice grip, IP57 waterproof, 3*AA Alkalkine batteries' power supply.
* The meter is CE certified and comes with a 2-year warranty (6-month for the probe).

Specifications

SR811-BS Portable Meat pH Meter

The SR811-BS Portable Meat pH Meter is a food grade pH meter/tester with specially and professionally designed food grade electrode, and it is an outstanding combination of the advanced digital processing technology, software design, and electrochemical sensor technology, specially designed for the pH measurement of meat, meat products, fish, or beef. Its LabSen spear electrode adopts durable food-grade stainless steel sheath, a solid electrolyte, and a long-life reference electrode, making the probe hard to be contaminated and maintenance-free.

Features:

* Equipped with LabSen Blade Electrode (Swiss technology), designed for professional meat pH measurement, hard to be contaminated and maintenance-free
* Accurate Measurement: Accuracy: ±0.01 pH, Range: -2.00-19.99 pH, ATC, Auto Calibration, Advanced digital processing technology, supports stable reading/auto-hold display mode
* Intelligent Functions: Self-Diagnosis of out-of-range value and electrode invalidation, calibration reminders, calibration date checking, easy parameter setting
* Data Processing: GLP standard data management, 500 data sets of storage, manual/auto timing storage, USB charging and data output, data protection in case of a power outage
* Structure Design: White backlit large LCD, the foldable stand allows use as a benchtop, soft silicone case gives you a nice grip, IP57 waterproof, battery and/or USB power supply

* The meter is CE certified and comes with a 2-year warranty (6-month for the probe).

Specifications

SR811-DP Portable pH Meter for Liquid Food (milk, buttermilk cream, yogurt, etc.)

The SR811-DP Portable pH Meter is designed for professional pH measurement of dairy products (milk, buttermilk cream, yogurt, etc.) and other liquid food such as jam, BBQ sauce, syrup, etc. The equipped Swiss LabSen 823 3-in-1 Glass pH/Temperature Electrode adopts Proselyte electrolyte, Silver Ion Trap reference system, and a patented pH/temp. dual sensor structure, making precise and quick pH measurement of dairy products easier than ever. Say goodbye to clogged junctions and fluctuating readings. The unique LabSen blue hemispherical glass membrane has a faster response rate, better repeatability, and built tough - highly resistant to general impact (totally differentiates from the fragile conventional glass bulb membrane).

Features:

* Equipped with Swiss LabSen 823 Professional 3-in-1 pH/Temperature Electrode designed for professional pH measurement of dairy products and liquid food.
* Intelligent Functions: Self-Diagnosis of out-of-range value and electrode invalidation, calibration reminders, calibration date checking, clock display, easy parameter setting.
* GLP standard data management, 500 data sets of storage, manual/auto storage, USB data output.
* Reliable Structure Design: Large white backlit LCD, soft silicone case gives you a comfortable grip, IP57 waterproof rating.
* Powered by AAA batteries; the foldable stand also allows use as a benchtop meter.

* The meter is CE certified and comes with a 2-year warranty (6-month for the probe).

Specifications

SR811-PW Portable pH Meter for Purified Water (Drinking/ RO/ Distilled/ Deionized Water)

The SR811-PW Portable pH Meter is designed for professional pH measurement of purified water such as drinking/RO/distilled/deionized water and other low ion-concentration solutions. The equipped LabSen 803 3-in-1 Glass pH/temp. Electrode adopts a moveable sleeve junction, Long-Life reference system, and a patented pH/temp. dual sensor structure, making precise purified water pH measurement easier than ever. Get stable readings as quick as 30 seconds. The unique LabSen blue cylindrical glass membrane has a faster response rate, better repeatability, and built tough - highly resistant to general impact (totally differentiates from the fragile conventional glass bulb membrane).

Features:

* Equipped with Swiss LabSen 803 Professional 3-in-1 pH/Temperature Electrode designed for quick and stable pH measurement of purified water (RO/Drinking/distilled/deionized water)
* Intelligent Functions: Self-Diagnosis of out-of-range value and electrode invalidation, calibration reminders, calibration date checking, clock display, easy parameter setting
* GLP standard data management, 500 data sets of storage, manual/auto storage, USB data output
* Reliable Structure Design: Large white backlit LCD, soft silicone case gives you a comfortable grip, IP57 waterproof rating
* Powered by AAA batteries; the foldable stand also allows use as a benchtop meter

* The meter is CE certified and comes with a 2-year warranty (6-month for the probe).

Specifications

SR811-WW Portable pH Meter for Wastewater Treatment

The SR811-WW Portable pH Meter is designed for professional pH measurement of wastewater, emulsions, effluents, and other turbid water solution containing sulfides and proteins. The equipped Swiss LabSen 333 3-in-1 POM pH/Temp. Electrode adopts Polymer electrolyte, Long-Life reference system, and a patented pH/temp. dual sensor structure, making precise wastewater pH measurement easier than ever. The unique LabSen blue glass membrane has a faster response rate, better repeatability, and built tough - highly resistant to general impact (totally differentiates from the fragile conventional glass bulb membrane).

Features:

* Equipped with Swiss LabSen 333 Professional 3-in-1 pH/Temperature Electrode designed for professional wastewater measurement.
* Intelligent Functions: Self-Diagnosis of out-of-range value and electrode invalidation, calibration reminders, calibration date checking, clock display, easy parameter setting.
* GLP standard data management, 500 data sets of storage, manual/auto storage, usb data output.
* Reliable Structure Design: Large white backlit LCD, soft silicon case gives you a comfortable grip, IP57 waterproof rating.
* Powered by AAA batteries; the foldable stand also allows use as a bench top meter.

* The meter is CE certified and comes with a 2-year warranty (6-month for the probe).

Specifications

How to direct-test soil pH?
If the soil is dry, add a small amount of distilled or RO water to moisten the soil (do NOT add tap water since it will affect the pH value significantly). Ideally, wait 24 hours before you take a measurement.
Insert the pH connector (the blue one) to the pH socket, and twist it clockwise to lock in; Insert the temperature connector to the temperature socket.
Rinse the probe with distilled water/RO water before inserting it into the soil.
If measuring outside of solution, rockwool or small pots, remove the top 5cm/2inch soil from the surface of the sample area. Insert the probe approximately 4 to 6 inches (10 to 15cm) into the soil samples from various locations (3 to 4), wait for the stable readings before recording (smiley face icon stays on the screen).
Users can press the M+ button to save the stable readings on the meter. Then take the average of the measured data as the representative pH level of the sample area.
Do NOT use extra force to insert the probe. If you feel like the probe can’t be inserted any deeper, stop inserting. The spear tip could break.
Rinse off the soil residue between tests using distilled water for the best results. Use the probe cleaning brush in the case if needed.

SR811-SL Portable pH Meter for Soil

The SR811-SL Portable pH Meter is designed for professional direct soil pH measurements. The equipped Swiss LabSen 553 3-in-1 POM pH/Temp. Electrode adopts Polymer electrolyte, Long-Life reference system, and a unique blue spear sensor tip, making precise direct soil pH measurement easier than ever.

Features:

* Equipped with Swiss LabSen 553 Professional 3-in-1 pH/Temperature Spear Electrode, this SR811-SL professional soil pH meter is designed for direct soil pH measurement. Say goodbye to slurry making.

* This soil pH meter has a ±0.01 pH accuracy in a range of 0-14 pH, and Temperature Range: -5 to 80°C (23 to 176°F), Auto Calibration with auto recognition of up to 12 kinds of buffer solutions, Auto. Temp. Compensation, and supports stable reading/auto-hold display mode. The meter's digital filter technology improves response time and accuracy.
* Intelligent Functions: Self-Diagnosis of out-of-range value and electrode invalidation, calibration reminders, calibration date checking, clock display, easy parameter setting.
* GLP standard data management, 500 data sets of storage, manual/auto storage, USB data output.
* Reliable Structure Design: Large white backlit LCD, soft silicone case gives you a comfortable grip, IP57 waterproof rating.
* Powered by AAA batteries; the foldable stand also allows use as a benchtop meter.

* The meter is CE certified and comes with a 2-year warranty (6-month for the probe).

Specifications

SR811-MS Portable pH Meter for Test Tubes and Small Liquid Samples

The SR811-MS Portable pH Meter is designed for professional pH measurement in test tubes and small liquid samples (>0.2mL). The equipped Swiss LabSen 243-6 3-in-1 POM pH/Temperature Electrode adopts a Long-Life reference system, and a unique cylindrical semi-micro sensor, making precise small sample pH measurement easier than ever.

Features:

* Equipped with Swiss LabSen 243-6 Micro pH/Temperature Probe/Electrode/Sensor, designed for pH measurement of small samples (>0.2mL).
* Intelligent Functions: Self-Diagnosis of out-of-range value and electrode invalidation, calibration reminders, calibration date checking, clock display, easy parameter setting.
* GLP standard data management, 500 data sets of storage, manual/auto storage, USB data output.
* Reliable Structure Design: Large white backlit LCD, soft silicon case gives you a comfortable grip, IP57 waterproof rating
* Powered by AAA batteries; the foldable stand also allows use as a benchtop meter.
* The meter is CE certified and comes with a 2-year warranty (6-month for the probe).

Specifications