Designer and manufacturer of the most rugged and reliable speed switches, machine sensors, and hazard monitoring systems for industrial applications. 

Electro-Sensors products include shaft speed switches and sensors, hazard monitors, 4-20 mA temperature sensors, slide gate and valve position sensors, belt alignment sensors, Modbus RTU I/O Modules, tachometers, DeviceNet sensors, pulser discs and wraps, and vibration monitors. Many of our products can be customized.

Electro-Sensors is proud to be an ISO9001:2008 quality certified company committed to providing excellent customer service and technical support. Most of our standard products ship within one to two days and have an industry-leading 5-year warranty.


"Production run" means making a lot of one product at once. The factories listed under "production" can produce small and/or large quantities. The minimum order for a production run can vary from factory to factory (some have no minimum, some require a dozen, and some require up to 1,000 to be made at once)