Cart 0
Notifier FST-851 Photoelectric Smoke Detector (NEW)

Notifier FST-851 Photoelectric Smoke Detector (NEW)

Notifier FST-851 Fixed Temperature Heat Detector

The Notifier FST-851 is an intelligent addressable heat detector designed for open-area fire detection. It uses a thermistor-based sensing circuit to deliver fast, reliable detection in environments where smoke detectors may not be suitable. The FST-851 activates an alarm when the ambient temperature reaches a fixed threshold of 135°F (57°C).

Key Features:

  • Fixed temperature alarm at 135°F (57°C)

  • Intelligent addressable sensor compatible with FlashScan™ or CLIP protocol

  • Dual LEDs for 360° visual alarm indication

  • Optional remote LED annunciator support (RA400Z/RA100Z)

  • UL 521 listed for 50-foot spacing

  • Compatible with standard B210LP (flanged) and B501 (flangeless) bases

Specifications:

  • Diameter: 6.1 in (155 mm) with B210LP; 4.1 in (104 mm) with B501

  • Height: 2.0 in (51 mm)

  • Weight: 4.8 oz (137 g)

  • Operating temperature: –4°F to 100°F (–20°C to 38°C)

  • Humidity range: 10% to 93% RH, non-condensing

  • Voltage range: 15–32 VDC

  • Standby current: 300 µA @ 24 VDC

  • LED current: 6.5 mA @ 24 VDC

 

DATASHEET