Kidde KC2-OS


Smoke Detector Head Only, Photoelectric, Two-Wire

Availability: Please Call for Lead Time

  • Factory New
Brand: Kidde Part #: 91903 Categories: , Manufacturer Part #: KC2-OS


The Kidde conventional photoelectric smoke and heat detectors are interchangeable head and base detectors using Optica smoke sensing technology and high accuracy heat sensor that provides outstanding stability and excellent response to a wide range of fires. Like their Kidde Intelligent series counterparts, KC2 smoke detectors feature a photoelectric chamber using Optica sensing technology providing multi criteria response discriminating real smoke from other nuisance sources. A single tri-color LED located on the housing provides alarm, trouble and standby indications The KC2 series consist of 3 models; KC2-OS is a multi criteria photoelectric smoke detector delivering a wide sensitivity range with discrimination to nuisance events and built in environmental compensation.


Weight 0.40 lbs
Dimensions 4.00 × 4.00 × 1.75 in



  • Self-diagnostic capability continually monitors operation
  • Meets NFPA 72 sensitivity test requirements
  • Head and terminal base design (base sold separately)
  • Automatic drift compensation
  • Tri-color status LED, solid red for alarm, flashing yellow for trouble and flashing green for standby
  • Low-profile design blends into the ceiling
  • Advanced nuisance discrimination from non-fire sources


Conventional 2-Wire Smoke & Heat Detectors; KC2 series
Kidde – Data Sheet

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