Welcome to our shop! This wire tracker is designed to help you quickly and accurately find line breakpoints without the need to open the line cover. It can detect short circuits, broken circuits, and overcurrents. It is compatible with both RJ11 and RJ45 connectors. The line detection function automatically scans for miss-wiring, disorder cables, short circuits, and other breakpoints. The line level test allows you to precisely test the positive and negative poles of the circuit using the transmitter. Additionally, it can verify the working state of telephone wires, distinguishing between the TIP circuit and the RING circuit. With a signal transmission distance of about 984ft, you can easily locate the breakpoints in the shortest time possible. Product Specifications: - Product type: Telephone Wire Tracker - Suitable for: RJ11, RJ45 - Height: <2km - IP level: IP 40 - Signal transmission distance: about 300m/984ft - Battery: Transmitter: 6F22/9V; Receiver: 6F22/9V (not included) - Color: Blue - Package size: approx. 22.5 * 11.5 * 4 cm/8.86 * 4.53 * 1.57 in - Package weight: 257g 100% Satisfaction: Our customers are our top priority. If you find any product problems after receiving the goods, such as damage and incorrect quantity of goods, please contact the seller immediately. We try our best to provide you with satisfactory after-sales service.