Standalone Detection Smoke Detectors 517 Series The Edwards 517 Series Smoke Detectors are designed for multi-family, residential and institutional occupancies defined by NFPA 101, in compliance with UL 217 and NFPA 72. The Edwards 517 Series provides a three position test feature that simulates actual smoke conditions. It also provides a maintenance indicator and makes the 100% testing requirement easy. FIRE ALARMS The temporal pattern evacuation tone is a standard feature. It is designed for ceiling or wall mounting on a standard electrical box and can tandem wire up to 12 units (or 6 with relay) to form a system. S olid-state non-latching piezo horn P ulsing LED sensing chamber 3 position functional test switch S olid-state LED condition indicator Q uick-disconnect wiring harness M ounting hardware adapts to standard junction boxes D ust cover 3 pulse temporal pattern evacuation sounding device 5 -to-1 signal-to-noise ratio O perating temperature range: 40ºF to 100ºF (4.4°C to 37.8°C) Ordering Information Operating Voltage1 Aux. Contact 1 Form A, 1 Form C Nominal Sensitivity Contact Rating Smoke Detector Smoke Detector with 9V Battery Backup Weights and Dimensions Approx. Shipping Weight (lb.)