Dwyer Instruments A-420A Pressure Sensor 321894-709 This valve is the designated

This valve is the designated service part for a wide range of Modine equipment

Critical Thermal Cutoff: Provides a secondary layer of protection by shutting down the system at the 240°F threshold to prevent overheating

Optimized Signal: Engineered to provide a clean flame sense microamp level

Optimized Efficiency: Designed to maintain accurate belt alignment and tension

Dwyer Instruments A-420A Pressure Sensor 321894-709 This valve is the designatedThe Dwyer A 420A Outside Static Pressure Sensor is a ruggedized static pressure pickup port designed to provide stable, accurate reference pressure readings in outdoor environments. Engineered with a NEMA 4X housing, this sensor is built to withstand extreme weather conditions while eliminating the erratic pressure fluctuations typically caused by wind gusts. For contractors performing building automation system (BAS) integrations, the A 420A is a