Gentex Hardwired Interconnected Photoelectric Smoke Alarm with Dualink and Battery Backup

The Gentex S1209 photoelectric smoke alarm is for use as an evacuation device in all dwelling units, including but not limited to homes, apartments, hospitals and hotels/motels. The S1209 is engineered to eliminate nuisance alarms and deliver outstanding performance wherever reliable smoke detection is required. The S1209 is listed in compliance with ANSI/UL 217.|120 VAC with 9VDC battery back-up|Temporal 3 evacuation piezo horn with a 3100Hz (nominal) horn frequency|Push button self-test feature|DUALINK feature: tandem with all Gentex tandem capable alarms|Quick disconnect wiring harness|Dust cover to prevent particle contamination during installation|Low or missing battery indicator|1 year warranty from date of purchase