Features Good Detection: The detector can quickly search and confirm the leakage location on various pipelines, thus better protecting the whole system. Great Accuracy: Equipped with dual probes of round probe and needle probe, the water leakage detector ensures high testing accuracy in working. Simple in Work: The headphone with 2000X audio amplification is adjustable, and the simple operation will largely improve the work efficiency. Extensive Uses: Wide in application, the underground water pipe detector is suitable to construction, pipeline repair and maintenance and so on. Easy Carrying: Comes with a compact size and a light weight as well, the water pipeline detection tool is very convenient to carry around. Specification: Item Type: Water Leakage Detector Material: ABS, Alloy Steel Battery: 1 x polymer battery with 1000mAh capacity, shipped with built in battery.  Consumption Current: 15mA Probe Sensitivity: -70Ddb Maximum Audio Amplification: 2000X Penetration: For water pipe, cement pipe, steel pipe.  Hearing: 32 ohm earphones, external 16 ohm speakers can be connected.  Package List: 1 x Water Leakage Detector 1 x Probe Needle 1 x Probe Head 1 x Headphone 1 x USB Cable 1 x User Manual Package List 1 x Water Leakage Detector 1 x Probe Needle 1 x Probe Head 1 x Headphone 1 x USB Cable 1 x User Manual