Theory
Amplify the sound vibration and transmit it through headphones
Function
Check the location of abnormal water leakage in the pipe inside wall
Function 2
Can detect internal faults in the machine
Function 3
Can detect abnormalities inside the wall
Function 4
can hear the sound from the other end of the wall
Battery
Built in 200mAh lithium battery
Operating Temperature
-20℃-50℃
Monitoring Method
Earphone, External Speakers Can Be Connected