Designed to identify cables in an MDU and detect troublesome short circuits, this pocket continuity tester and toner is perfect for testing cables up to 5,000 ft (1,500 m) on the go. This tester features the following: Female push-on connector is perfect for speed toning Accurate up to 5,000 feet (1,500 m) Connect the toner without emitting a tone under discretion Includes (1) AAA 1.5V battery and (1) pocket clip