1Line Finding Function: Insert the network cable with registered jack into the RJ11 RJ45 interface of the transmitter, lightly press the SCAN button of the transmitter to start the line finding function. When you hear a beep sound, it indicates that the target cable has been found. 2Alignment Function: Press the TEST button on the transmitter lightly to activate the alignment function. Determine the characteristics of circuit paths, short circuits, open circuits, and crossings based on the wire sequence indicator light on the transmitter and receiver. 3Indicator Light: Insert the RJ11 crocodile clip adapter wire into the RJ11 interface of the transmitter, and use red and black clips to clamp the two ends of the tested line. The wire sequence 1 indicator is on, the red crocodile clip is the negative pole, the wire sequence 3 indicator is on, the red crocodile clip is the positive pole. 4Convenient to Use: Suitable for RJ45 network cable interface, RJ11 telephone cable interface, dual core telephone cable can be connected through crocodile clip. Split design, easy to operate, supports long distance line finding and alignment at both ends. 5Multiple Functions: Supports sensitivity adjustment from 0 to 5cm distance, flashlight for receiver lighting, output signal level of about 5Vpp, with long transmissing distance, and low signal interference. 1 x Transmitter 1 x Receiver 1 x Crocodile Clip 1 x Ethernet Cable 1 x Storage Bag 1 x User Manual