Network cable tester for fast testing of 10-Base UTP, STP, , and modular cables with and RJ11 connectors. It allows to test for cable continuity, wrong connection, open circuit, short circuit or cross pinning by comparing the transmitting end with the corresponding receiving end. Features - Material: PC. - Size: 10.20X9.50X2.70cm/4.01X3.73X1.06 inch. - Battery: 9V battery (not included). - Interface: RJ11/ . - The outer shell of our network cable tester is made of PC, which has drop resistance, and durability. - Cable tester automatically tests the continuity, open, shorted of twisted pair data wiring ( /RJ11) connections. - Allows you to troubleshoot network cables and thereby enabling you to fix it accordingly. Accurately test pin configurations of network cables. - The tester consists of a unit and a detachable remote unit. - Insert the battery, turn on the tester, and connect one end of the cable to the Master side and the other end to the Remote side. Package list: 1 x network cable tester