First Alert Wireless Battery Operated Smoke & Carbon Monoxide Alarm (2 Pack)

This unit is Photoelectric smoke and Carbon Monoxide detector, it is also Wireless with a battery Backup. If you need to tie this into other Hardwired units you will need to get the SA521CN(SA520B) to use as a bridge unit. First Alert Onelink allows wireless smoke detector integration with battery backup. By adding Onelink battery operated alarms elsewhere, when one alarm sounds in either series of alarms, all alarms will be notified. Easily link alarms together with the press of a button. Photoelectric smoke sensor reduces nuisance alarms from cooking smoke or shower steam. Easy access battery drawer: no need to remove alarm from ceiling to change battery. 7-year limited warranty. Meets UL standards.

• First Alert Smoke Detector Alarm | Battery Powered with Wireless Interconnect | 2-Pack, SA511CN2-3ST
• First Alert Hardwired Wireless Smoke Alarm with Photoelectric Sensor and Battery Backup, SA521CN-3ST
• First Alert Wireless Interconnected Photoelectric Smoke and Carbon Monoxide Combo Alarm with Voice and Location, SCO500B
• First Alert SCO500B (Series SCO500) ONELINK Battery Operated Combination Smoke and Carbon Monoxide Alarm with Voice Location *2-Pack*
• First Alert Fire Extinguisher | Professional Fire Extinguisher, Red, 5 lb, PRO5
• First Alert Hardwired Talking Photoelectric Smoke and Carbon Monoxide Detector, BRK SC7010BV
• Megapro Marketing USA NC 211R2C36RD Ratcheting Screwdriver
• First Alert Dual-Sensor Smoke and Fire Alarm, Battery Powered, Frustration-Free Packaging, SA320CN
• Kidde 21026044 Wireless Interconnect Battery Operated Smoke Detector Alarm | |, Model RF-SM-DC
• Square D by Schneider Electric QO 20 Amp Single-Pole Dual Function (CAFCI and GFCI) Circuit Breaker