①. This water leakage detection equipment is applicable to leakage detection of various construction pipelines such as home water pipeline, cement pipes, steel pipes. This water leakage detector is a tool for plumbing engineers, which is practical. ②. The small size of this tool is convenient for everyday use, you can carry it in your tool bag without taking up much storage space. ③. This tool uses the rechargeable battery to supply power, so you can recharge it in time. Water leakage detector adopts new component and technology, which improves the sound quality. ④. This tool can be used to leakage detection of various construction pipelines such as home water pipeline, cement pipes, steel pipes. This water leakage detector is an essential tool for plumbing engineers. The volumes can be adjusted through the volumes knob, you can adjust the volumes according to your needs in time. ⑤. Material: ABS; Color: black; Probes sensitivity: -60Ddb; Maximum audio amplification: 13000X; Penetration: water pipes/cement pipes/steel pipes; Sound input: 32 ohm earphones; Power consumption: 12mA; Battery: 1 * lithium battery, 100mAh (included); Package size: 95 * 80 * 38mm / 3.7 * 3.1 * 1.5in; Package weight: 75g / 2.6ounce. ⑥. Packing list: 1 * Water Leakage Detector. ⑦. Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.