First Alert Hard-Wired w/Battery Back-up Ionization Heat Alarm
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The First Alert HD6135FB Hardwired Heat Alarm with Battery Backup allows you to enhance your home's fire safety plan in areas where smoke detectors aren't an option. Ideal for use in kitchens, bathrooms, crawl spaces, garages, and other places not suitable for smoke alarm installation, this heat alarm accurately detects high temperatures and rapid temperature rises. If a threat is detected, the alarm alerts you with a loud 85-decibel siren. Designed to be hardwired directly into your home's electrical system, this heat detector features a 9-volt battery backup that helps keep the unit functional in the event of a power outage.


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