Kidde Firex Hardwired Inter-Connectable 120-Volt Auxiliary Heat Detector 135 Degree with Battery Backup

The Kidde FireX HD135F is a 120-Volt AC Wire In Heat Alarm that responds to temperature rather than smoke. The alarm will sound if temperatures rise above 135°F. The Kidde HD135°F is inter connectable. The interconnect system must not exceed the NFPA (National Fire Protection Association) limit of 18 initiating devices (Smoke, heat, CO, etc.) interconnected, it is still possible to interconnect 6 strobe lights and or relay modules. This unit includes a 5-year limited warranty and is UL Listed.Receive an instant alert when temperatures exceed 135°FTest button assures proper operation of the sensor's electronic circuitry, horn and battery functionInterconnects with up to 24 Kidde devices (of which 18 can be initiating), including smoke and carbon monoxide alarms9-Volt battery backup provides continuous protection even during power outagesRed LED flashes every 30 - 40 seconds to indicate proper operationQuick-connect power harness for fast and easy installationTamper-proof pin helps deter tampering and theftR...