This simple, compact data cable tester for RJ11, RJ12 and RJ45 terminated voice and data cables for Miswires, Open-Faults, Short-Faults and Shield. Instant LED responses indicate cable status. The test remote stores securely in the tester body. The Auto Power-Off feature shuts the tester down automatically to save the 9V battery (included).PRODUCT FEATURES:- Single button testing of RJ11, RJ12 and RJ45 terminated voice and data cables - Tests CAT3, CAT5e and CAT6/6A cables - Fast LED responses indicate cable status (Pass, Miswire, Open-Fault, Short-Fault, and Shield) - Test remote stores securely in tester body - Compact tester easily fits in your pocket - Auto Power-off feature to conserve battery life (9V included) - Low battery indicator