Feature:1. HIGHLY SENSITIVE SENSING: Leak detector has a highly sensitive sensing, noise filtering, broaden the exploration frequency range of 200HZ3000HZ, improve efficiency.2. FOUR LEVELS OF ADJUSTMENT: Wall leakage listen tester with metal body, four position adjustment, test depth of 11.5m / 3.34.9ft (test depth and pipe pressure size).3. ACCURATE POSITIONING: Water pipe leakage monitor is more accurate in positioning, the higher the value, the closer to the leak point, to capture different leaks.4. SENSITIVITY DISPLAY: Water pipe leak detector rotates counterclockwise to decrease the display sensitivity, and clockwise to increase the display sensitivity.5. APPLICABLE SCENARIOS: Water pipe detector is suitable for a variety of scenarios, widely used in fire fighting pipes, floor heating pipes, household pipes, car rattles, etc.Specification:Item Type: Water Pipe Leak DetectorMaterial: Aluminum AlloyFrequency Range: 200-3000HzMagnification: 0-100dB AdjustableFrequency Staging: 1-4 Staging 200-3000HZ Continuously AdjustableBattery Type: Built In 1600mAh Polymer Lithium Battery.Package List:1 xWater Pipe Leak Detector3 x Probe1 x Probe Protection Cover1 x Muffler Handle Converter1 x Earphone1 x Storage Box2 x Key1 x Power Adapter1 x Instruction Manual