SIEMENS HFP-11 FIRE ALARM SMOKE HEAT DETECTOR HFP11,HFP-BRAND NEW-SHIPS N 24 HRS

Condition is Brand New.

Brand: SIEMENS

Model: HFP-11 FIRE ALARM SMOKE HEAT DETECTOR HFP11,HFP.

Shipped with USPS First Class Mail .

You Will Receive 1 ea SIEMENS HFP-11 FIRE ALARM SMOKE HEAT DETECTOR HFP11,HFP-BRAND NEW-SHIPS N 24 HRS.

RARE VINTAGE COLLECTIBLE

SHIPS N 24 HOURS

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Inventory Box Number: 407

Description:

The HFP-11 is a plug-in, two-wire, multi-sensor detectorwith both photoelectric and thermal inputs and is compat-ible with Fire Finder XLS and FS-250 series of controlpanel systems. Each detector consists of a dust resis-tant, field-cleanable photoelectric chamber, a solid statenon-mechanical thermal sensor, and microprocessorbased electronics with a low-profile plastic housing. TheHFP-11 utilizes state-of-the-art ASIC circuitry and surfacemount technology for maximum reliability. Every HFP-11fire detector is shipped with a protective dust cover. TheHFP-11 fire detector utilizes an infrared light emittingdiode (IRLED), and light sensing photodiode. Undernormal conditions, light transmitted by the LED isdirected away from the photodiode and scattered throughthe smoke chamber in a controlled pattern. The smokechamber is designed to manage light dissipation andextraneous reflections from dust particles or other non-smoke airborne contaminants in such a way as to main-tain stable, consistent detector operation. When smokeenters the detector chamber, light emitted from theIRLED is scattered by the smoke particles and is receivedby the photodiode.