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JOHNSON CONTROLS 5551J HEAT DETECTOR HEAD
— B501BHT Intelligent Temporal Tone Sounder Base
Alternately
Direct-dial entry of address: 01 – 99 on FireWarden-100-2
• Dual LEDs indicate communications and activate steady when in alarm
NIB! SYSTEM SENSOR D4240 4-WIRE DUCT SMOKE DETECTOR NOTIFIER HS-NCM-SF JOHNSON CONTROLS 5551J HEAT DETECTORThe System Sensor D4240 4 wire photoelectric duct smoke detector features a pivoting housing that fits both square and rectangular footprints and mounts to round or rectangular ductwork. Also, this unit operates in airflow speeds of 100 to 4,000 feet per minute, temperatures of 4F to 158F, and a humidity range of 0 to 95 percent (non condensing). Besides, a plug in sensor head offers improved false alarm immunity and simple installation, testing, and
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