![]() ![]() Plus, it has a test/silence button for quick and easy testing. Tamper-resistant locking pins prevent unauthorized disabling of the hardwired CO and smoke alarm. Pressing it once will silence the alarm but only temporarily. FIRST ALERT SC9120B Combination Alarm with Adapter Plugs for Easy ReplacemList: 67.99 FREE delivery May 17 - 19 Or fastest delivery May 16 - 17 More Buying Choices 34.57 (13 used & new offers) Best Seller FIRST ALERT BRK SC9120B-3 Hardwired Smoke and Carbon Monoxide (CO) Detector with Battery Backup. The one button is the silence/test button. After all, theres only one button to press, so its easy to turn off even when youre rattled. The side-load backup battery compartment makes changing the 9-volt battery simple. The First Alert 9120B smoke alarm is extremely easy to silence. The First Alert Hardwired Combination Smoke and Carbon Monoxide Alarm integrates with existing wiring and features the easy adapter plug, which makes installing the detector quick and easy. The latching alarm indicator on the hardwired CO and smoke alarm automatically identifies which detector initiated the alarm – even after the conditions that set off the alarm have subsided. Once one alarm is triggered, all connected CO and smoke alarms will sound. This hardwired combination smoke and carbon monoxide detector can be connected to other compatible BRK or First Alert combination CO and smoke detectors within a single-family residence. /rebates/2fpd2fFirst-Alert-AC-Hardwired-Combination-Smoke-and-Carbon-Monoxide-Detector-with-Battery-Back-Up2f3031833&252fpd252fFirst-Alert-AC-Hardwired-Combination-Smoke-and-Carbon-Monoxide-Detector-with-Battery-Back-Up252f303183326tc3dbing-&idlowes&nameLowe27s&ra1. Buy First Alert SC9120B Hardwired Smoke & Carbon Monoxide Combination Alarm With Battery Backup: Carbon Monoxide & Smoke Detectors at. Connect to Other Alarms for Greater Coverage This 2-in-1 hardwired alarm has lights on the face of the alarm to let you know which threat has been detected. The FIRST ALERT BRK SC9120B hardwired combination smoke and carbon monoxide alarm uses an electrochemical carbon monoxide sensing technology and ionization. Bundle is ideal for an apartment alarm features a battery backup in case of power failure, and extinguisher easily mounts to the wall. The First Alert Combination Smoke and Carbon Monoxide Alarm detects two threats, smoke and carbon monoxide, in a single device. Keep your family safe with this bundle from First Alert, including two SC9120B hardwired smoke and carbon monoxide alarms, and a Home1 rechargeable fire extinguisher.
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