Kidde FX-PHD

Optical Fixed Temperature Detector

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Brand: Kidde Part #: 36504 Categories: , Manufacturer Part #: FX-PHD Tag:


The FX-PHD combines the suitability of optical sensing for slow burning fires with the sensitivity of fixed-temperature detection for fast flaming fires to arrive at a solution that responds reliably to the widest range of fire types. A sophisticated algorithm processes data from both sensors over time so that an alarm is only reported when conditions precisely match the signature of a fire. This eliminates the shortcomings of single-sensor optical and heat detection, and significantly reduces the risk of nuisance alarms.


Weight 0.25 lbs
Detectable Medium


Detection Method


Thermal Rating


Production Status


Intelligent/Addressable Detectors & Bases


Kidde - Data Sheet

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