BRK First Alert HD6135FB 120-Volt AC/DC Hardwired Heat Alarm with Battery Backup

[shortdesc] Alarm Type Heat Power Source Hardwired Sensor  Thermistor Detection 135° Fixed & Rate Of Rise Interconnects Yes Battery 9V  [/shortdesc] This First Alert HD6135FB Hardwired Heat Alarm is a great add-on for crawl spaces, laundry rooms, garages, bathrooms, kitchens, or other applications not suitable for smoke alarm installations. This heat alarm features advanced rate-of-rise sensing technology. The alarm sounds if either the temperature reaches 135 degrees Fahrenheit or if the temperature rises more than 15 degrees Fahrenheit in one minute. The First Alert BRK Brands Hardwired Heat Alarm with Battery Backup is a performance-rich solution that includes numerous safety enhancers to ensure the maximum overall protection. First Alert BRK Brands Hardwired Heat Alarms feature a near-effortless installation process and are easily maintained. The utilization of rate-of-rising temperature sensing and a microprocessor that drastically reduces the number of nuis