1Stable performance, it has strong antiinterference ability, and has a variety of applicable types of cables. It is an indispensable testing tool for telecommunication engineers, wiring engineers, and network maintenance personnel. 2Tracking function, it can track the line from RJ11, RJ45 interface, other metal conductors can be tracked through the adapter, the sensitivity is adjustable, the signal is strong and the distance is long. 3Noncontact type, it can use noncontact method when performing AC voltage detection, can detect AC voltage above 48V, and does not need to strip the sheath, which is convenient and quick. 4It can be directly searched with any type of weak current equipment such as Ethernet switches, routers, etc. It can fully detect the order of the network cables, and is equipped with lowvoltage prompting and lighting functions. 5Small in size, it is lightweight and portable, can be easily handheld to test in various situations, to help you detect the cables you needcan be used as a good helper for you. Item Type: Line Finder Material: ABS Model: WT-58DL Transmitter Power Supply: 1x9V 6F22battery (Battery Not Included) Receiver Power Supply: 1x9V 6F22battery (Battery Not Included) Purpose: It is suitable for testing network cables and telephone lines. Model WT-58DL Special Function With Red Light Pen Function Transmit A Signal Digital Signal (No Interference and No Noise) Applicable Equipment Ethernet Switch/Router/Optical Cat and Other Weak Current Equipment Live Line Hunting and Testing Hunting Function Traceable Type: RJ45, RJ11 and Metal Wire Line Function Detect Line Breakpoint, Short Circuit, Line Sequence (Network Cable) Line Level Detection Line Level Positive and Negative Detection Telephone Line Status Detection Determine The State of The Telephone Line at Work (Ringing Indicator Light Prompt) On-Off Function Determine Whether The Cable is Continuous POE Switch Withstand Voltage The POE power supply switch can directly trace the line with power, and the DC voltage should be less than 60V. Switch Port Pairing Transmitter Direct Detection and Switch Port Network Line Sequence Accessories Earphone/Network Cable/6P Clip Cable Signal Distance Approx. 0-300m / 0-984.3ft Operating Temperature 0~40, 80% Relative Temperature (Non-Condensing) Storage Temperature -10~50, 80% Relative Temperature (Non-Condensing, without Battery)1 x Receiver (Battery Not Included) 1 x Transmitter (Battery Not Included) 1 x Earphone 1 x Cable 1 x Clip Line 1 x Toolbag 1 x Manual Do not use this product during thunderstorms, dampness, and thunderstorms.