Profile: Extron Co. manufactures industrial DC motor controls and associated electronics. Our industrial controls include deticated loogic controllers, DC drives, differential pressure gauges, isolation cards, annunciators and thermcouple multiplexers. The first out indicators or annunciators is designed to detect faults in the operational and safety circuits of electrical equipment. It monitors up to eight points in a series string of contacts, such as proxs, limit switches, photo eyes, contactors, push-buttons and relay contacts. It will latch and hold the first failed contact in a string and indicate that fault. We provide a complete line of single phase D.C. motor controls and accessories. It includes chassis mount or enclosed, regenerative or single quadrant motor controls.