Easily detect faulty networks and telephone lines with RJ45 and RJ11 connections using this network cable tester. Connect one end of the cable to the main unit, the other to the detachable remote unit, and turn on the power. The unit's LEDs can be used to see how cables are connected, to identify shorts, incorrect wiring or cross connections. The main unit requires a 9V PP3 battery (not included).

• Tests all common networks and telephone lines using RJ45 and RJ11 connections
• Easy-to-read LED indicators show short/open circuit, crossover and incorrect wiring
• Simple setup and operation
• Includes carrying bag