• Ultrasonic leak detector utilizes ultrasonic sensor to check the air-tightness
  of pipeline. 
• The instrument can identify the gas leakage of various pressure or vacuum
  system.
• The transmitter will generate 40kHz ultrasonic signal, and it is used
  in conjunction with the detector to detecting the leaking location of the object.
  For example, the detector will detect signal leaking from the hole of the
  pipeline and as user moves the detector, the hole can be located correctly.
• The operation is easy and accurate. The main application is the tightness
  test of any kinds, for example, doors, windows, plumbing, container,
  car windows, refrigerators … etc.

• Detector: Operating Temperature: 0-40°C. Operating Humidity: < 80% RH.
                   Frequency Responding: 40kHz ± 2kHz. Power: 9V battery.
• Transmitter: Operating Temperature: 0-40°C. Operating Humidity: < 80% RH.
                        Generating Frequency: 40kHz. Power: 9V battery.

• Detector: Connect the earphone with the earphone jack. Rotating the rotation
  switch to switch on the power. Power Indicator shall light up, if not, please
  change the battery. Rotating the rotation switch to adjust the sensitivity.
  Moving the sensor of the detector along the testing area slowly. If there is no
  leaking been detected, “ LEAK ” Indicator will not light up, and user will hear
  “ DA – DA – DA ” repeatedly from the earphone. As the detector approaching
  the leaking location, “ LEAK ” Indicator will start to light up, and the frequency
  and volume of “DA – DA – DA” voice will increase. Repair the leaking point
  and repeats test procedure (1) – (3) to make sure the leaking is sealed properly.
  Switch off the detector power.
• Transmitter: Rotating the rotation switch to switch on the power.
  Power Indicator shall light up, if not, please change the battery.
  The transmitter will start to generate the ultrasonic signal, use the detector to
  detect the signal. Switch off the power after the test is done.