This specific model is engineered with a 22VDC coil

Durable Construction: Housed in a corrosion-resistant aluminum shell designed to withstand rigorous outdoor environments

Key Benefits Precise Low-Flow Control: The poppet design ensures steady pressure for both tiny pilot flames and main burner loads

Integrated Circuit Protection: The inherently limited design prevents damage from short circuits without requiring manual fuse replacement

This genuine OEM fitting package includes the essential brass ferrule and nut

System Sensor 5621 Detector This specific model is engineeredThe System Sensor 5621 is a commercial grade dual circuit mechanical heat detector designed for high reliability fire detection in environments where traditional smoke sensors are prone to nuisance alarms. This 135F fixed temperature and rate of rise heat detector utilizes two independent circuits to trigger both local alarm systems and auxiliary devices like fans or door closers. The Rate of Rise (ROR) element responds to temperature increases