The XG-C503 Wired Heat Detector is a precision-engineered fire detection solution that uses fixed temperature sensing technology to provide early fire warnings in environments where smoke detection is impractical or ineffective. Triggered when ambient temperature rises to 57°C, the XG-C503 is ideal for use in kitchens, workshops, boiler rooms, and mechanical spaces, where dust, steam, or cooking fumes could otherwise cause false alarms. Operating on DC 9V–35V and supporting both 2-wire and 4-wire system configurations, it offers flexible installation options to suit a variety of fire alarm infrastructures. Built from flame-retardant ABS material and featuring an easy-to-see red LED alarm indicator, the XG-C503 ensures quick detection, system reliability, and long operational life. It is fully EN54-5:2008 certified, guaranteeing international compliance and performance standards.