Brand N/A Model SC8108B Quantity 1 Color Grey Material Plastic Features Measure cable length and determine the distance of open circuit and short circuit LCD Display 2.5" Special Functions Cable measurement length range: 1350 meters Application Checks wiring error such as: open circuit short circuit jumper wire reverse connection or cross-talk interference Other Suitable for 5E 6E coaxial cable telephone line; Cable measurement length range: 1350 meters (31200 ft); Locate the wiring or connection error; Measure cable length and determine the distance of open circuit and short circuit; Checks wiring error such as: open circuit short circuit jumper wire reverse connection or cross-talk interference; Automatically time-delay shut off; Far-end recognizer with prompting voice; Self-checking function and automatically compensate any change in battery capacity or ambient temperature; Single board computer software watchdog design and reliable operation; Powered by 4 x AAA batteries (included) Packing List 1 x Cable tester 1 x Cable adapter 4 x AAA batteries (1.5V included) 1 x English user manual