allsun Pro Ultrasonic Leak Detector Kit,Electronic Stethoscope Ultrasonic Sound Detectors Refrigerant, Air,Gas and Liquid Leaks,Auto Leakage Tester Diagnosis Tool Noise Detection

This tool is a very useful diagnostic test tool which can reduce downtime and maintenance related costs of the tested equipments. 

Through the detection of ultrasonic sound, this tool can be used to inspect and check such items as ignition systems, vacuum problems, air brake systems, bearings, gear trains, cam and tappet assemblies, internal combustion engine valving and piston blowby, gaseous piping and ducting, seals in refrigerated van bodies, air ducts, hydraulic systems, Freon leaks, and many other components.

This tool consists of an ultrasound receiver, a tone generator, an air probe, a contact probe and a headphone.

The receiver is sensitive only to ultrasonic energy in the frequency range of 36000 to 44000Hz. The energy is amplified by internal circuitry and converted to audible sounds (available through the headphone) and an intensity reading on the red LED display.

The tone generator is used with the ultrasound receiver to check for faulty seals in nonpressurized enclosures, such as automotive cabin windows/doors/roofs, etc.

Operating Principle

Moving parts, liquids and gases cause turbulence or friction.This turbulence or friction can produces high frequency ultrasonic waves whose frequencies are normally higher than 20kHz and are far above the range of human hearing. 

This Ultrasonic Diagnostic Tool operates on the principle mentioned above, it uses advanced ultrasonic sensing technology and converts inaudible ultrasonic sound into an audible sound which bears a close likeness to the natural incoming sample.