Fenwal 12-E27121-000-03 Sensor 30067439-890 this HVAC duct sensor should

this HVAC duct sensor should be mounted vertically on a flat surface

Simplified Pilot Routing: Features an integrated 1/8"-27 NPT pilot tap located over the inlet for efficient pilot line connections

it is optimized for secure installation in VAV terminal units and small ductwork

Precision Flow Throttling: Provides accurate hydronic balancing to eliminate cold spots and improve system response

Fenwal 12-E27121-000-03 Sensor 30067439-890 this HVAC duct sensor shouldThe Fenwal 12 E27121 000 03 is a precision engineered Detect A Fire vertical mount thermal sensor designed for rapid response in critical fire suppression and overheat signaling applications. This rate compensated fire detector utilizes a 300 stainless steel shell and a hex brass mounting head to ensure hermetically sealed reliability in harsh environments. Configured as a close on rise thermal switch, it features a factory set activation point of