Feature 1 Widely Used: Water pipeline leakage tester is highly practical and suitable for water leakage detection of various construction pipeline wall. 2 Adjustable Sound Levels: Water pipe leak detector detects leaks in pipe wall by amplifying sound, and with headphones, you can adjust the sound level. 3 Dual Probe: Water pipe leak detector features a dual probe design, including circular and needle probes, which can be switched according to the situation in the field. 4 Collect Sound Separately: Pipe leak detector can collect sound separately, and automatically close the separate acquisition function after plugging in the HY929 device connector to enter the connector acquisition state. 5 Small and Compact: Water pipeline leakage tester is compact and compact, easy to carry and store, and detect anytime, anywhere.Item Type: Pipe Leak DetectorMaterial: ABSProbe Sensitivity: -70dbMaximum Sound Magnification: 20000xPermeability: Wall, Water Pipe, Cement Pipe, Steel PipeAnswering Method: Headphones, Can Be Connected to 16 Ohm SpeakersLeak Detector Battery Type: Built in 300mAh Lithium Ion BatteryPickup Storage Type: Up to 32GB Memory CardPickup Battery Type: Built in 220mAh Lithium Ion Battery Package List1 x Pipe Leak Detector1 x Pickup1 x Round Probe1 x Needle Probe1 x Headphones1 x Power Adapter1 x Data Cable2 x Instruction Manual