Please be advised: We will be closed Thursday, November 26th and Friday, November 27th in observance of Thanksgiving.
ATTENTION: During the COVID-19 outbreak we are available 8:00am-4:00pm EDT, Monday-Thursday until further notice.
We are still shipping Monday-Thursday at this time.
In store pickup is available with appointment only. Call for more information.
In stock orders placed in the next will be shipped today.
|Special Shipping Type||No|
Overhead Door Holder 280 Sensaguard
Glynn-Johnson provides a holder/release smoke detector designed
to allow fire doors to remain open for easy passage, while releasing
doors in an emergency. The SensaGuard™ Series 280 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.
Uses a household 9 volt battery.