Circuit Specialists' inventory of durable specialty test equipment runs the gamut: phase indicators, cable trackers, lead testers, laser tachometers, etc. We carry PC cable-checking devices — which work with over 20 types of cables — are used for mapping cables and detecting good connections, opens, shorts, and crosses. If you need to identify and trace wires or cables in a bundle without damaging the insulation, take a look at our low-cost cable trackers.