The Datatronix DT-RJ45/11/BNC-TEST is a very simple to use meter for testing unshielded twisted pair, shielded twisted pair and coaxial cable connections. This unit has simple, easy to understand instructions and operates on a single 9-volt battery (not included). The unit features a simple on/off switch and an “S” setting for slowing down the testing speeds. It will test for pin functionality, shorts, breaks in the line and continuity.