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Controllers: I/O
I/O Controllers have been sold and serviced by industry leader Sterling Services since 1991.

We stock a large number of I/O Controllers as well as products like circuit boards, monitors, circuit breakers, sensors, photoelectrics, contactors, servo drives, PLC modules, DC drives, speed controls, electrical hardware, starters, pressure controls, industrial controls, temperature controls, process controls, instruments, timers, counters, proximity switches, inverters, transmitters, push buttons, and IO blocks.

I/O Controllers are integral in industrial automation and we back ours with a one year warranty.

The major manufacturers include General Electric, Reliance, Allen Bradley, Siemens, Cutler-Hammer, CTC, Telemecanique, Honeywell, Uticor, Nematron, Texas Instruments, Square D, Westinghouse, Modicon Mitsubishi, and Omron.

Save 55 - 85%! Sterling Services PLC sales and PLC repairs are Guaranteed For Life! Unless otherwise stated, the products listed are reconditioned. Product photographs are representative, actual product photographs can be emailed upon request. Sterling Services is not an authorized distributor or representative of any manufacturer, brand or product listed, additionally trademarks, brand names and brands appearing on this website are the property of their respective owners. If you are interested in new products, please contact Sterling Services sales staff at 1-800-280-4602. Thank you for your business.