Our Bulletin 837 Electromechanical Temperature Controls family of condition sensing products includes rugged, industrial-grade temperature controls. These devices use vapor pressure technology to sense changes in temperature. Typical repeat accuracy is ±2 °F.


Our Bulletin 837RTD Resistance Temperature Detectors have a wide temperature range -50…+200 °C (-58…+392 °F), probe lengths, and process connections.

Our Bulletin 837T Solid-state Temperature Sensors are capable of measuring temperature in liquids, gases, and vapors from -50...250° C (-58...482° F). These sensors offer a rugged, corrosion-resistant housing and are available in display and non-display models with IO-Link Technology, discrete, and analog outputs. There are various process connections which include sanitary options and probe lengths for application flexibility.

Rockwell Automation announces that as of June 2020, the Bulletin 837E Solid-state Temperature Switches will be discontinued and no longer for sale. Customers are encouraged to migrate to the Bulletin 837T Solid-state Temperature Sensors.