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The Honeywell NOTIFIER FST-951R Heat Detector is an intelligent addressable rate-of-rise thermal detector designed to provide reliable heat detection and intelligent property protection. It uses advanced thermistor sensing technology with a 15°F (8.3°C) per minute rate-of-rise detection capability and provides precise device identification through rotary decimal addressing. The FST-951R connects to compatible NOTIFIER fire alarm systems through a two-wire SLC loop and is designed for commercial, industrial, and other fire protection applications.

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