connection of up to 18 units, 12 smoke alarms maximum, when the alarm goes off all the units sound their alarm function Silence - silence allows convenient button with automatic reset set temporarily override alarm - ideal for cooking smoke and fireplaces eliminates false positives and audible battery indicator, alarm test button and power. Includes a super heavy 9-volt battery to power the alarm in case of power failure alarm with his horn loud 85 decibels and the red LED display. A green LED indicates AC quickly pull removable tray makes it easy battery change Combo Nation smoke and carbon monoxide alarm protection 120 Vac powered with battery backup for power outages that can operate individually or in networks with a maximum of 18 units of other
List Price: $ 59.99
Price: $ 59.99
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