The waterproof probe pipeline blockage detector is equipped with 8 waterproof probes, which can cope with various environments and have a long service life. Waterproof probe, this detector can be used to detect wall nails, metal pipes, PVC pipes, and even water pipes. It can accurately locate hidden blockages, pipeline blockages, and remind you through a buzzer. ABS shell: The blockage tester shell is made of high-quality ABS material, which is impact resistant, scratch resistant, and does not deform. Introduce the signal line and transmitter into the pipeline until the signal line cannot move forward. At this point, the end of the probe is in a blocked position. Turn on the power switch of the signal transmitter, the red indicator light will turn on, turn on the signal receiver switch, and the handheld signal receiver will detect along the approximate direction of the buried pipeline. If you approach the probe receiver in the pipeline, the signal grid on the display will become fuller, indicating a blockage point. Make good records, unplug the signal line first, dig the ground, and then handle it. If the test distance is short or the green indicator light is on, it means that the battery level is low. Please replace the battery. If it is a rechargeable model, please charge it in a timely manner. If the charger turns green, it means it is fully charged. If the receiver and transmitter are charging at the same time, there may be some noise when turning on, which is a normal phenomenon