The 280 Series SensaGuard features an internal ionization type smoke detector, powered by a single nine-volt battery. Its fail-safe operation automatically releases the door when battery power drops below 7.2 volts.
The 280 Series SensaGuard is ideal for a variety of facilities, including schools, hospitals, office buildings, and multifamily residential units. It is easy to install and requires no external wiring. It is UL listed for fail safe electronics.