This instrument is a multi-functional wire tracker, including cable emitter and receiver. It has functions like telephone wire tracking, network wire tracking, power cable tracking, network wire check, etc. and it produces fast and accurate measurements. It is a necessary testing tool for telecommunication engineering, wiring engineering and network maintenance person.

Features:
Multi-functional wire tracker, such as telephone wire, network wire, power cable.
Equipped with RJ11 and RJ45 cables and with interface on the transmitter.
Network wire checking function, according to 18pcs indicators to judge normal/short-circuit/open-circuit/crossing.  
Easy and fast to locate the breakpoint without opening the wire's cover.
Short-circuit/open-circuit detection and DC level testing function.
Low battery indication(<6V) and volume adjustment function.
A great tool for telecommunication engineering, Internet bar, network maintenance, etc. 

Specifications:
Working Environment: 0°C~40°C，20%~75%RH
Storage Environment: -10°C~50°C，10%~90%RH
Altitude: ≤2000 meters
Signal Transmission: Multifrequency Pulse
Short Circuit/Open Circuit Detection: Yes
Distance of Audio Signal: ≥1000 meters
Distance of Sending Signal: ≥100 meters 
DC Level Testing Range: ±3.3V~±52V(when the voltage>10V, the testing time<2 minutes, and the interval of each test>5 minutes)
Powered By(NOT Included): Emitter: 1 * 9V Battery; Receiver: 1 * 9V Battery
Transmitter Size: 125 * 48 * 28mm / 4.9 * 1.9 * 1.1in
Receiver Size: 195 * 48 * 30mm / 7.67 * 1.9 * 1.2in
Transmitter Weight: 75g / 2.66oz  
Receiver Weight: 104g / 3.68oz 
Package Size: 28.2 * 18.5 * 5cm / 11.1 * 7.3 * 1.97in
Package Weight: 379g / 13.39oz

Package List:
1 * Cable Transmitter
1 * Cable Receiver
1 * RJ11 Cable
1 * RJ45 Cable
1 * Crocodile Clip Adaptation Cable
1 * Carry Bag
1 * User Manual (English)