Features1Advanced Technology: The water leakage detector adopts new components and the most advanced technology in Japan, which increases the penetration force several times and greatly improves the sound quality. 2Strong Penetrability: The water pipe leak detector has strong penetrability, whether it is water pipe, cement pipe or steel pipe, it can play a very good effect. 3Sound and Dual Detectors: The volume of the sound can be adjusted and switched according to the situation on site. Dual detector design, including probe and stylus. 4Wide Range of Applications: The water leak detector has strong practicability and is suitable for leak detection of various construction pipelines. 53.7V Lithium Battery: Built in 3.7V lithium battery, which can be recharged repeatedly, have long service life and easy to use.SpecificationItem Type: Water Leak DetectorMaterial: ABSColor: As Pictures ShownWeight: Approx. 322g / 11.4ozCurrent Consumption: 15mA Applicable Battery: Lithium Battery 3.7V(Delivered with Built in Battery)Battery Model: 571935Battery Capacity: 350mAhProbe Sensitivity: -70DdbHighest Audio Magnification: 20000XPenetration: Water Pipe, Cement Pipe, Steel PipeProduct Size: Approx. 6x5.8x2.3cm / 2.4x2.3x0.9inAnswering Method: 32 ohm Headphones, Can Be Connected To 16 ohm SpeakersPackage List1 x Water Leak Detector 1 x Probe Pin 1 x Headphone 1 x Probe 1 x USB Cable 1 x Manual