Features: Portable Size: The small size of this tool is very convenient for everyday use, you can carry it in your tool bag without taking up too much storage space. Built-in Battery: This tool uses the rechargeable battery to supplys power, so you can recharge it in time. Water leakage detector adopts new component and advanced technology, which greatly improves the sound quality, giving you a better experience. Wide Application: 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 a very 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. Specifications: 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 Packing list: 1 * Water Leakage Detector Made of high quality material, durable and practical to use. Perfect functions,give you a wonderful experience. Every customer can enjoy 30 days refund or replacement for Damaged/Quality Issues. If you have any questions, please feel free to contact us, we will solve it for you. Water Leakage Detector Alarm Rechargeable Underground Water Pipe Fire Pipeline