By placing the tip of the sensor in the tank of an ultrasonic cleaner or in running water, the strength of ultrasonic waves generated inside the tank is measured in mV.
Use the point sensing cover (sold separately) to narrow down the locations to check.
Specifications
Model number: HUS-3 (body)
Measurement range (mV): 10 50 100 500
Frequency characteristics: 10kHz - 5MHz
Signal input: 1ch
Power supply: DC14.8V 1.5W (Lithium battery internal)