Fisher™ FIELDVUE™ 4400 Digital Position Transmitter for Crosby J-Series Pressure Relief Valves

Designed for use with Crosby J Series valves, the 4400 provides real-time, high-accuracy valve lift data to track pressure relief events and calculate volumetric release. Its compact, linkage-less design simplifies installation, and 4–20 mA + HART communication ensures seamless integration into plant systems. The 4400 offers a smarter way to monitor and respond to pressure relief valve events, leading to improved environmental reporting, efficiency, safety, and reliability.