Gentex SHRR — 120 VAC multi-criteria smoke alarm, catalogue number 917-0073-002, with an isolated 135°F rate-of-rise thermal and two sets of Form A/C relay contacts.
This is a self-contained dwelling-unit alarm listed to ANSI/UL 217 9th Edition, not a UL 268 system detector on a signalling line circuit. It runs on building power with a 9V battery for backup, sounds its own horn, and tandem-interconnects with other Gentex alarms.
- Multi-criteria smoke sensing including photoelectric light-scattering, nominal 2.5% obscuration
- Isolated 135°F rate-of-rise self-restoring thermal, rated 135°F at 50 feet
- Two Form A and two Form C auxiliary contacts, 0.3 amps, operating on battery backup
- 120 VAC 60 Hz, 0.055 amps; 9V alkaline battery, Duracell MN 1604
- 85 dBA at 10 feet, 3100 Hz nominal, Temporal 3 pattern
- 40°F to 100°F; 5.5" × 5.5" overall, 1.75" deep
STRR (917-0072-002) is the same alarm with an integral thermal rather than an isolated one; SR (917-0071-002) has one Form A and one Form C set and no thermal; H (917-0079-002) is heat only. Gentex states the SHRR wiring harness is not interchangeable.
