System Sensor B112LP Detector this switch is specifically calibrated

this switch is specifically calibrated for units requiring a 0

Purpose: Protects and positions temperature sensor for accurate readings

The 10-400 series utilizes a silicone seat and a stainless steel spring to ensure positive shut-off and consistent set-pressure performance

What is the purpose of the red housing

Can this spring be used in other Sensus regulator models

System Sensor B112LP Detector this switch is specifically calibratedSystem Sensor B112LP Gas Smoke Detection, 24Vdc Nominal Voltage, 4 Wire, Ceiling Mounted, Smoke Detector Adapter Base with SPST NO and SPDT relay contacts and a 470 ohm current limiting resistor for 100 Series Smoke Detector Heads