Cable Tracer On the job continuity checker for XLR and BNC cable runs. Put the box at one end and a connector at the other and the leds will tell you if there's continuity on the cable. XLR also checks phantom in an audio run, and DMX on a  3 pin cable. BNC also checks H or V sync pulses.
	Phantom Checker  3 pin XLR contains two leds to indicate presence of phantom power in an audio run, as well as DMX pulses on a  3 pin cable. Also works with Szikla Cable Tracer.