Feature 1Zinc Alloy: Made of premium zinc alloy, the water leakage detector is sturdy, durable, reliable, rustproof and has a long service life. 24 Gears: The zinc alloy water leakage detector has 4 gears, automatic noise reduction, can be used for pipe leakage, floor heating detection, geophysical exploration water. 3Accurate: The water leakage detector has exquisite craftsmanship, powerful performance, clear sound quality, strong sensitivity, suitable for all kinds of pipe, ground and wall, etc. 4Working Principle: The working principle of the water leakage detector is to rely on the seismic wave of the physical sound source to transmit sound, sound gradually amplified, to the ear can be heard normally. 5Effect: The larger the leakage point of the detection pipe, the greater the water pressure, the better the effect. The 4 gears pipe leakage detector has a function port is for recording.Item Type: Water Leakage DetectorMaterial: Zinc AlloyWeight: Approx. 1403g/3.09lb Color: As Shown Size: Approx. 11x6.5x2.5cm/4.33x2.56x0.98in Battery: 9V 800mah 6F22 Nimh Battery (Delivered with Built In Battery) Working Time: 10-23 Hours (Depending on Sound Strong and Weak)4 Sound Options: 3 Gear(100Hz-700Hz), 2 Gear(700Hz-900Hz), 1 Gear(900Hz-1100Hz), 0 Gear(1100Hz-1600Hz)Probe Sensitivity: -60dbMaximum Audio Magnification: 25000xUses: Precise detection instruments, with automatic noise reduction function, high definition listeners, can be used for pipeline leakage testing, floor heating detection, water detection, and application of various pipeline materials and grounds, wall, etc. .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List1 x Water Leakage Detector1 x Inductive Head1 x Earphone1 x Aluminum Storage Box1 x Use Manual