Industrial Grade: Suitable for multi-use applications including natural gas service regulators used in heavy-duty meter sets

Its compatibility with Fenwal spot-type detectors ensures precise alignment and consistent performance in demanding high-airflow ventilation applications where sensing accuracy is paramount for life safety systems

Key Benefits High-Precision Cutoff: Opens exactly at 218°F (104°C) to prevent terminal equipment failure during a rollout or overheating event

High-Temperature Resistance: Certified rod materials support operation in extreme environments up to 2175°F

A.J. Antunes 8021204002 Pressure Switch Els PW 17895 Industrial Grade: Suitable for multi-useThe A. J. Antunes 8021204002 Pressure Switch (Model SMD) is a field proven SPDT air differential pressure switch engineered for precision monitoring in commercial HVAC systems and industrial air handling units. This switch operates across a 0. 17" to 6" W. C. pressure range, allowing technicians to accurately calibrate set points for proof of flow, filter monitoring, or fan status verification. Designed with 1 4" compression fitting connections, it