Front-loading battery door allows you to change the battery without removing the alarm from mounting bracket
Provides a Hush™ feature to quickly silence nuisance alarms
Tamper resist locking feature deters alarm theft
Alarm memory flashes red LED indicating which unit was the initiating alarm in interconnected system.
Battery backup provides protection in case of power failure
Interconnectable with up to 24 devices (of which 18 can be initiating) including smoke, CO and heat alarms. See user’s guide for complete instructions.
Part # (Ordering Number): 21007581
Previous part #/model #: 120-1182, fadc, 120-538b, i5000
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