The Burnham Boilers 101015-01 Flue Gas Temperature Sensor is a monitoring component designed to measure exhaust gas temperatures in compatible boiler systems. It detects temperature changes in the flue gas and sends signals to the boiler control system for monitoring and operational adjustments. This sensor is used in residential and commercial hydronic heating boilers. It supports sa... https://www.partshnc.com/101015-01-burnham-boiler-fluegas-temp-sensor