Gentex SR 120VAC Smoke Alarm with Relay

The Gentex SR is a 120VAC smoke alarm with auxiliary relay contacts for dwelling unit evacuation and remote annunciation applications. It uses multi-criteria photoelectric smoke sensing and includes 9V battery backup, Gentex tandem interconnect support, an 85 dBA horn, and Form A/Form C relay output. Key Specifications: Type: 120VAC smoke alarm with battery backup and relay contacts Core Function(s): Detects smoke, provides local audible evacuation signaling, and supports remote relay annunciation Loop/Protocol: Gentex tandem interconnect Power: 120VAC, 60 Hz; 0.055 amps operating current; 9V alkaline battery backup Indicators/UI: Red LED pulses every 16 seconds; green LED indicates AC power; push-button self test and functional test Alarm Output: 85 dBA at 10 feet; Temporal 3 evacuation pattern for smoke alarm Sensing: Multi-criteria smoke sensing with photoelectric light scattering technology; nominal 2.5 percent obscuration sensitivity Relay Output: One Form A and one Form C auxiliary relay contact set Operating Range: 40 F to 100 F Battery: 9V alkaline backup battery with low or missing battery indication Mounting: Adapts to standard junction boxes; includes quick-disconnect wiring harness Part Number: 917-0071-002 System Compatibility: Gentex tandem-capable S/C/SC/H Series alarm applications.