Every cable needs to be tested before it"s installed, so what could be more convenient than an RJ45 crimping tool with a built-in wiring tester? The Hobbes Tooltest incorporates a small detachable cable map tester, letting you quickly and easily test twisted pair cables for wiring continuity, opens, shorts, and mis-wires. With a single push of one button, the Tooltest crimp tool will indicate the results of the cable"s pin-to-pin configuration.