General description This multifunctional cable tester, the MS6812, is designed for easy and efficient detection of cable issues without the need to open cable covers. It can quickly identify breakpoints and provides audio signals through cables or wires, making it ideal for checking the status of telephone lines, such as idle, ringing, or busy. The device is equipped with a sensitive sensor module that allows for accurate detection of problems in the working circuit, ensuring safe inspection without disturbing the cable installation. Technical specifications Effective detection distance: 3000m Includes: 1 Transmitter, 1 Receiver, 1 Instruction manual, 2 Batteries Usage Check cable continuity Detect short circuits and open circuits Perform cross-state tests Locate cables or wires and diagnose break points