Features： 1、Withstand Voltage 60V: The POE tester can be used directly on the switch, and the line can be traced directly on the switch within 60V, which is more convenient and simple. 2、Testing Easily: Proof of the cable sequence, when the cable crystal plug is done, the cable finder can be used to test whether the cable is connected or disconnected. 3、Precise Line Hunting: It can accurately find the pair of line cables that need to be searched among many lines. 4、Finding The Line In One Step: Line finder supports a variety of lines can find telephone lines, network cables, wires, and various metal cables. 5、Anti Interference And No Noise: The cable tester is effective in anti interference, with a headphone connector design, you can wear headphones for tracking in noise or office environments. Specification： Item Type: Line Finder Material: ABS Model: TF-008P Battery: 9V 2 x 6F22 (not included) Uses: Can find telephone lines, network cables, wires, and various metal cables Support Language: English Maximum Working Current: Transmitter ≤ 15mA  Receiver≤25mA Signal Transmission Format: Digital square wave Signal Transmission Distance: ≤3KM Package List： 1 x Receiver (Battery Not Included) 1 x Transmitter (Battery Not Included) 1 x Headphone 1 x RJ45 Line 1 x RJ11 Line 1 x RJ11 Clip Cable 1 x Manual  1 x Carrying Case