- Wentzville, Missouri, United States
- Jun 2nd
New, just opened to take pics! Will never use so selling it. Photoelectric smoke sensing technology Horn frequency 3100 Hz (nominal) Temporal 3 evacuation audible signal Relay contacts operate when on battery back-up Nominal 2.5% sensitivity Push button self-test feature, verifies power sources/operation Push and hold button functional test feature, analyzes sensing chamber Quick-disconnec