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First Alert BRK 3120B Hardwire Dual Photoelectric and Ionization Sensor Smoke Alarm ($29) Image used with permission by copyright holder This smoke detector by First Alert has the advantage of being a dual-sensor alarm. That means it uses both photoelectric and ionization sensors to detect smolder...
First Alert SMICO100-AC 互连硬线组合烟雾和一氧化碳报警器,带备用电池,1 件装 4.7 颗星,最多 5 颗星 26,598 另有4 种版本,价格 US$37.99 起 #5 First Alert SMCO210,10 年密封电池组合烟雾和一氧化碳报警器,超薄外形设计,1 件装 4.4 颗星,最多 5 颗星 6,355 US$31.49 #6 Kidde 烟雾和...
The First Alert SC9120B Hardwired Combination Smoke and Carbon Monoxide Alarm is a hardwire alarm with battery backup. The hardwired detector includes a 9-volt battery backup for continued function in the event of a power outage. This combination fire ...
pre-stripped wiring harness with easy off cap, and a front battery pull tab so you can activate the backup battery without removing the alarm from the mounting bracket. Red and green LED lights on the smoke detector indicate the alarm's status, with green indicating the unit has AC power....
Designed to help promote household safety, the First Alert Hardwired Ionization Smoke Alarm with Battery Backup can provide early warning of fire. This hardwired smoke detector uses an ionization smoke sensor to reliably detect smoke from hot, fast-flaming fires. ...