120-Volt hardwired alarm with 9-volt battery back up. Designed to supplement smoke alarm installation. Fixed rate and rate of rise temperature sensing allows unit to alarm prior to reaching the fixed temperature setting of 135°F. Ideal placement includes garages, crawl spaces, bathrooms, laundry rooms or other spaces not suitable for smoke alarm installations. Alarm senses heat and will sound when the temperature reaches 135°F or when a rate of rise of 15°F per minute is sensed allowing you faster response to a potential fire. Single button test and silence. Latching alarm indicator remembers which unit initiated an alarm. Ability to interconnect up to 18 devices, of which 12 can be smoke alarms. Pins are provided to lock battery drawer and/or alarm to base. Color: White

120-Volt hardwired alarm with 9-volt battery back up. Designed to supplement smoke alarm installation. Fixed rate and rate of rise temperature sensing allows unit to alarm prior to reaching the fixed temperature setting of 135°F. Ideal placement includes garages, crawl spaces, bathrooms, laundry rooms or other spaces not suitable for smoke alarm installations. Alarm senses heat and will sound when the temperature reaches 135°F or when a rate of rise of 15°F per minute is sensed allowing you faster response to a potential fire. Single button test and silence. Latching alarm indicator remembers which unit initiated an alarm. Ability to interconnect up to 18 devices, of which 12 can be smoke alarms. Pins are provided to lock battery drawer and/or alarm to base. Color: White