• Wireless integration gives effortless connectivity
• Photoelectric smoke sensing with mute button
• Eco-friendly
• Easy access battery door
• Optional theft-prevention lock protects the detector

The First Alert SA501CN-3ST Onelink Wireless Battery Powered Smoke Alarm allows wireless smoke detector integration. This 120VAC hardwired wireless detector interconnects alarms with battery backup. Expand protection to include existing hardwired detectors and new wireless detectors by replacing one existing hardwired alarm with Onelink. 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. 10-year limited warranty. Meets UL standards.

• Owner's Manual

Wireless Smoke Alarm

2AA Batteries

First Alert Onelink Wireless Battery Powered Smoke Alarm - 2 Pack	First Alert Onelink Integrated Wireless Smoke Alarm	First Alert Lithium Battery Smoke Detector	Smoke Detector
First Alert Smoke Alarm With Escape Light	First Alert Photoelectric Smoke Detector	First Alert Smoke Alarm Hardwire With Battery Backup

INSTEON Smoke Bridge	First Alert SCO501CN-3ST ONELink Carbon Monoxide and Smoke Detector with Voice	First Alert SA521CN-3ST Onelink Integrated Wireless Smoke Alarm	INSTEON Hub