Universal Security Instruments SS-776-CAN-3 Battery Powered Ionization Smoke and Fire Alarms with Silence Feature, 3-Pack

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Interconnect up to 18 units, 12 smoke alarms maximum; when one alarm goes off all units sound their alarm

The pack includes a separate large size 5-5/8-Inch mounting plate, which attaches to any standard rectangular or octagon junction box and covers drywall cutouts

The alarm sounds with its loud 85 decibel horn and the red LED indicator flashes. A green LED light indicates AC power

The chamber and cover design protect the alarm from bugs ...

Equipped with Dual Power & Dual Time features

Complete with a loud 113db adjustable tone and volume control

Packaged with our newest most powerful 12-volt bed shaker

Complete with a high/low dimmer switch to sleep better at night

Battery backup maintains proper time in the event of a power outage

Brand New and High Quality,LCD Displayer with a Blue Ground Light.Loud 85 decibel alarm,Permanent Carbon Monoxide Sensor,The Alarm Sound Pattern is Three Short Alarm Beeps. The Red LED Will Flash While in the Alarm Mode.

One chirp every 30 seconds in an indication that the battery is low (need replacement) (green LED still flashes once every 30 seconds).

Test/Reset button to test the unit electronics and verifies proper unit operation and reset t ...