Features 1、The product has stable performance and long service life 2、The product can be ability to make fast and accurate measurements 3、Split design, easy to use and carry 4、Adopt high-quality materials, anti-shock and anti-fall, suitable for a variety of environments 5、Standard multi-port, simultaneous testing and smooth to connect Specification Item Type: Wire Tracker Power Supply: 9V DC laminated battery(not included) Maximum Working Current: Transmitter ≤10mA; receiver: ≤30mA Signal Transmission Format: Multi-frequency pulse Signal Output Level: 8Vp-p Signal Transmission Distance: ≥3km Testable Port: RJ11 RJ45 Testable Wire: Twisted pair, video line, telephone line, ordinary metal wire, etc. Operating Temperature: -10℃-60℃ Operating Humidity: 20%-70% Package List 1 x Transmitter 1 x Receiver 1 x Earphone 1 x RJ11 Adapter Cable 1 x RJ45 Adapter Cable 1 x Crocodile Clip Adapter Cable 1 x User Manual