It is designed for use with preprinted circular charts and standard ink pen configurations

000 ohm sensors at 77

Designed as a genuine PROTECH OEM replacement part

This is an electronic sensor designed specifically for the digital logic of the L71XX series

Vibration Resistant: Rugged construction maintains calibration integrity in demanding high-traffic commercial environments

Spence Engineering D550 Pilot THPU32HP7Y It is designed for useThe Spence Engineering D550 Pilot is a heavy duty, spring operated pressure pilot designed to interface with Type E and Type C main valves for high accuracy steam regulation. Constructed with a rugged cast iron body, this normally closed pilot is specifically engineered for secondary pressure control in steam heating systems and industrial vapor applications. It features a 5 50 PSI spring range, allowing contractors to field adjust delivery setpoints