Feature 1 Widely Used: Water pipe leakage monitor is practical and suitable for leakage detection of all kinds of construction pipes. 2 Amplify Sound: Water leakage monitor detects pipe leaks by amplifying the sound, using headphones, you can adjust the sound level. 3 Dual Probes: Water leakage detector uses a dual probe design, including a circular probe and a needle probe, which can be switched according to site conditions. 4 Application: Water pipeline detection tool is highly penetrating and can be applied to water pipes, cement pipes, steel pipes, etc. 5 Premium Material: Water pipeline detection tool is made of premium ABS material, durable and long service life.Item Type: Water Leakage DetectorMaterial: ABSProbe Sensitivity: -70dbMaximum Sound Amplification: 20000 Times 20000XPenetration: Water Pipe, Cement Pipe, Steel PipeListening Mode: Headphones, Can Be Connected to the External 16 European SpeakersBattery Type: Built in 300mAh Lithium Ion Battery Package List1 x Water Leakage Detector 1 x Round Probe1 x Needle Probe1 x Earphone1 x Power Adapter1 x Data Cable1 x ManualNote1. The depth of water leakage tested by the product is about 1m;2. When you need to use the probe, turn the switch to the probe sign, and when you need to use the probe, turn the switch to the probe position;3. Usually the probe is used for flat land, and the probe is used for gaps;