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First Alert Hardwired (with Battery Back-Up) Heat detector

  • 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° F or if the temperature rises more than 15° F in one minute

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