Photoelectric Smoke Alarm AC power DC battery backup
interconnected wire-in first time smoke alarm. stand-alone sound and light alarm on-spot. this smoke detector has wire-in and can be interconnected with other same type smoke alarm. when first smoke alarm is triggered, other interconnected smoke alarm will make alarm at same time.
photoelectric sensor provides the best protection against slow smoldering and other types of fires, providing an early warning signal to you and your family in the event of a smoke or fire incident.
dg321 includes a 9v backup battery, providing continuous protection even during a power failure and includes a quick connect power harness making installation simple. blow is the features of this smoke alarm.
2.90-280v 50-60hz ac power supply
3.test button for easy test unit's electronic circuit, horn and battery function
4.red led to indicate that the smoke alarm is operating properly and alarm condition.
5.the unit shall be capable of self restoring.
6.a fully screened sensing chamber to prevent entry of small insects thereby reducing the probability of unwanted alarms.
7.the unit shall be capable of operating between 40f (4c) and 100f (38c) and relative humidity between 10% and 90%
8.the unit shall center mount to any standard electrical junction box up to 4" size without screw removal and shall be listed for wall or ceiling mounting.
9.the unit shall have an optional locking mechanism to deter battery and /or theft of the unit.
10.the unit shall have a dust cover to keep alarm clearn during construction.
11.features a quick-connect wiring harness and be capable of interconnecting up to 18 devices, 12 of which can be smoke alarms.
12.the unit shall meet the requirement of nfpa72, en54...
Posted: March 01 2017 Updated: March 01 2017
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