The HTP 7855P-031 Flame Detector Sensor is a safety component designed to detect and monitor the presence of a flame in compatible HVAC heating equipment. It works by sensing the flame signal during the ignition process and communicating its status to the control system, helping ensure safe and reliable burner operation. This sensor is commonly used in HTP boilers, furnaces, and other... https://www.partshnc.com/htp-7855p-031-flame-detector-sensor