Features [Waterproof Probe] With waterproof probes, this pipe clogging detector is able to handle various environments, which ensures a long service life. [Sturdy ABS Material] Made of sturdy ABS material, this pipe clog detector is impact and scratch resistant, allowing for long-term use. [Beep Notice] This detector can accurately position the internal pipe lock and provide a beep warning to remind you. [Wide Applicability] The pipe scanner allows for quick localization of any blockage or clogging in pipes, avoiding widespread clogging of pipes. [Versatile Application] This pipe lock scanner comes with 4 probes, interchangeable to detect steel, iron, PVC and other types pipes. Specification: Item Type: Pipe Clogging Detector Material: ABS Measuring range: 20 m Transmitter: Yes Receiver: Yes />Detection range: 0-50cm Transmitter power supply: 1 x 3.7V 2000mAh lithium battery (built-in) Receiver Power Supply: 1 x 3.7V 2000mAh Lithium Battery (Built-in) Full charge measurement duration: about 8-10 hours How to use: 1. Pass the signal line and transmission line into the pipeline until the signal line cannot advance and the position of the probe is the locked position. 2. Turn on the power switch of the transmitter, and the green indicator light will turn on. 3. Turn on the receiver's power switch and hold the signal receiver to detect along the approximate direction of the buried pipe. If the receiver horn approaches the internal probe of the pipe, it will emit a buzz and the maximum sound will be produced at the blocking point. Mark it, pull out the signal line and open the ground with a chisel to proceed with processing. 4. After continuous use for a period of time, the green light of the product begins to flash, indicating that the remaining battery can be used for about half an hour. Pay attention to the load in a timely manner. (Firmly hold the handle, twist the wire spool, lift and release the cable.) Packing List: 1 x Transmitter. 1 x receiver. 1 x charging cable. 4 x Probe Accessory Set Package List 1 x Transmitter 1 x Receiver 1 x Charging Cable 4 x Probe Accessories Set