Description • Ceiling or wall mounting • Listed to UL 268 7th Edition and ULC-S529 • NEMA 1 rated. • Louvered smoke sensor design enhances smoke capture by directing flow to chamber; entrance areas are minimally visible when ceiling mounted • Designed for EMI compatibility • Magnetic testing • Different bases support a supervised or unsupervised output relay, or a remote LED alarm indicator Specifications • Three fixed temperature sensing thresholds: 135°F, 155°F and 190°F • Rate-of-rise temperature sensing • Utility temperature sensing • Listed to UL 521 and ULC-S530