Network cable tester terminated with RJ45 connectors and telephone cabling with RJ11 connectors. Powered by a 9V battery (not included). Designed for testing cable types: UTP, FTP, STP (8 wires) and telephone cables RJ12, RJ11 (6 wires) - 8 pairs of indicators (LEDs) show connection accuracy - Autoscan function with 2 speeds: ON - normal and S - slow - testing each wire individually - switch for turning on power to extend battery life Conducted tests: - crossed pairs - cable break (interruption) - reversed pairs - short circuit Case included. dimensions: 10.5 x 10 x 2.5 cm weight: 112 g