Specification:
Item Type: Leak Detector
Material: ABS + Metal
Weight: Approx. 380g/13.4oz
Product Size: Approx. 6 x 4 x 2cm/2.4 x 1.6 x 0.8in
Color: Black
Consuming Current: 15mAh
Use Battery: Lithium Battery 3.7V Batteries (Built-in Battery)
Probe Sensitivity: -10D db- -70D db
Maximum Audio Amplification Factor: 20000X
Penetrability: Pipe/ Cement Pipe/ Steel Pipe
Answering Method: Earphone can be connected with 16 ohm speaker
Instructions for use:
1. Insert the probe or probe into the audio input jack
2. Insert the earphone into the audio output jack
3. The red light is on when charging, and the red light is off when completely charged

packing list:
1 x Host Detector
1 x Plug
1 x Circular Probe
1 x Needle Probe
1 x USB Cable
1 x Headphone
1 x Instruction