Ultrasonic Leak Tester, Ultrasonic Leak Detector

AMT586 Ultrasonic Leakage Detector

This Ultrasonic Leakage Detector is designed to locate the source of the ultrasonic emissions generated by gas or air leaks. The leakage level is displayed by "LED Display Panel", and is covered to audible sound by either internal buzzer or to external optional earphone.


Used for measuring Leakage of system. Applicable to detect Leaks in refrigeration and air condition systems, Leaks in heating system, Internal leaks in steam transfers, Compressed air leaks, Tire & tube leaks, Engine seals, Electrical arcing, The bearing problems, Bake system. With the Ultrasonic transmitter, it is applicable to Air leaks around door & window gaskets & seals, Water leaks in roofs, Conduit & pipe identification, Door & trunk seals, Windshield leaks.


Human ear can hear sound frequency up to 18 KHz. The sound frequency above 20 KHz is categorized as ultrasonic sound which is not audible. Ultrasonic sound is very directional in nature. We can utilize this nature to pinpoint the exact origin of the sound source where the leak is located. Physics tells us that the gas always flows from the higher pressure region to the lower one. When the pressure difference is only a small opening, the turbulence created by the gas through the small hole then generates ultrasonic sound. In the non pressurized state, the ultrasonic transmitter is applicable, ultrasonic wave can leak from the small hole. Ultrasonic gas leakage detector is designed based on the above simple physics.


Leakage Sensitivity Indicator: LED display panel & audible tone.

(LED display is a relative measurement only. Audible tone is the frequency of the received ultrasonic sound divided by 32.)
Frequency Response: 20KHz to 100Khz.
Power Supply: 4x1.5 AAA battery
Power Consumption: Approx. DC 25mA.
Operating Temperature: 0 to 50C ( 32 to 122F)

Operating Humidity: Max. 80%RH.
Weight: Approx. 140g/0.31lb (including battery).
Size: 236 x 63 x 26mm (9.3 x 2.5 x 1.0inch)

AMT40 Ultrasonic Transmitter


Ultrasonic transmitter can emit ultrasonic wave, to measure the leakage of the system with ultrasonic leak detector. With the Ultrasonic Leakage Detector, it is applicable to Air leaks around door & window gaskets & seals, Water leaks in roofs, Conduit & pipe identification, Door & trunk seals, Windshield leaks.


Frequency: 40KHz.
Oscillator Circuit: 640KHz crystal time base & divided by 16.
Operating Temp.: 0 to 50C ( 32 to 122F ).
Operating Humidity: Max. 80%RH.
Power Supply: 2x1.5 AAA battery
Weight: 50g/0.11lb (included battery)
Size: 100 x 35 x 23mm (3.9 x 1.4 x 0.9inch)

AMT282 Ultrasonic Leak Tester

This Ultrasonic Leak detector is design to locate leaks in pressure and vacuum systems. It can be used to detect and locate the source of ultrasonic emission generated by gas or liquid flowing through a small restrictive opening. It uses the advanced ultrasonic sensing technique and features small size, light weight, reliable detection, easy use and utility.
In conjunction with Ultrasonic Transmitter, can also be used for tightness check in sealed compartments such as container, tank, car, etc.
Design to locate leaks in pressure and vacuum systems
Locate leaks pressure and vacuum systems
Quick location of air, water, dust leaks
Place the transmitter in the vehicle and close the doors and windows
Trace the detector around outside of the screen, windows and door seals to locate the leak 2 LED lights
Red: Leak
Green: Power
Comes with earphone and carrying bag

Alarm Indication: The "LEAK" LED lights and the "ticking tone" increases in frequency
Frequency Response: 40kHz 2kHz
Operating Condition:
Temperature: 0C~40C
Relative humidity: <80%
Battery: 9V,6F22 or equivalent
Size: 192 x 50 x 30mm
Weight: about 115g (including battery)
Indicator: LED
Operating Condition:

Temperature: 0C ~ 40C
Relative humidity: <80%
Output Frequency : 40kHz
Battery: 9V,6F22 or equivalent
Low battery Indication: "POWER" LED can't light
Size: 101 * 59 * 28mm
Weight: about 90g (including battery)
Set includes:
1 x Receiver
1 x Transmitter
2 x 9V Battery (FREE)
1 x Earphone
1 x English Instruction Manual
1 x Carrying bag
Standard Packaging Box

( If you need user manual or E-catalogue for above meters, please ask for at: xiushunjie@163.com )