This black cartridge assembly features a precision-engineered valve mechanism and a stainless steel strainer basket that effectively traps particulates before they can reach the internal orifice

Engineered for high-temperature furnace environments

The status LED provides specific LED fault codes

and floating point or On/Off signals

ensuring seamless integration into existing gas valves and burners

Fenwal 12-H27121-000-08 Sensor Refrigerant This black cartridge assembly featuresThe Fenwal 12 H27121 000 08 Detect A Fire Sensor is a high precision, rate compensated temperature sensitive fire detector engineered for critical vertical mount applications. Designed to activate at a fixed thermal set point of 600F, this unit operates with a Close on Rise contact action, completing the circuit to trigger fire suppression systems or alarms when the threshold is reached. Built with a 300 stainless steel shell and a hex brass mounting