Intelligent Multisensor Smoke and Heat Detector

Availability: Estimated 6 - 8 Business Days

  • Factory New
Brand: Kidde Part #: 37878 Categories: , , Manufacturer Part #: KIR-PHD


The KIR-PHD detector brings advanced multisensor technology to a practical design that increases efficiency, saves installation time, cuts costs, and extends life safety and property protection capabilities. Continuous self-diagnostics ensure reliability over the long-haul, while environmental compensation helps reduce maintenance costs. The KIR-PHD provides an optical smoke sensor and a rate-of-rise heat sensor with a fixed temperature setting. Together these sensors efficiently detect smoldering fires, as well as fast flaming fires. Like all KIR Series detectors, the KIR-PHD gathers analog information from its sensing elements and converts this data into digital signals. To make an alarm decision, the detector’s on-board microprocessor measures and analyzes smoke and heat sensor readings and compares this information to historical data. Digital filters remove signal patterns that are not typical of fires, thus virtually eliminating unwanted alarms.


Weight .40 lbs


Material Qualities

Detection Method

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Thermal Rating




  • Next generation detection technology
  • Integrates optical smoke with rate-of-rise heat sensing
  • Wide 0.53 to 3.94 %/ft. (1.7 to 12.35 %/m) smoke obscuration
  • Uses existing wiring
  • Sensor Markings Provide Easy Testing Identification
  • Up To 250 Total Addresses Per Loop
  • Two levels of environmental compensation
  • Two levels of dirty detector warning
  • Five sensitivity settings
  • Non-volatile memory
  • Convenient rotary addressing
  • Environmental compensation
  • Automatic day/night sensitivity adjustment
  • Bicolor (green/red) status LED
  • Standard, relay, fault isolator, and audible mounting bases


Intelligent Multisensor Smoke and Heat Detector KIR-PHD
Kidde – Data Sheet

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