• Kidde Combination Carbon Monoxide and Smoke Alarm - Voice Alarm - Battery Operated - KN-COSM-XRT-B - 21007450

    Product ID • 210074500000

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The Kidde KN-COSM-XRT-B 900-0216 uses breakthrough technology to offer a fast response to real fires, including smoldering and fast-flaming, as well as protect you from carbon monoxide and dramatically reduce the chance of nuisance alarms. In addition, the Intelligent Alarm contains a voice warning that clearly states the present danger "smoke or carbon monoxide" and announces "Fire! Fire!" or "Warning! Carbon Monoxide!" The Intelligent Alarm combines the detection capabilities of an ionization smoke sensor which is more likely to detect smaller, less visible fire particles, like those produced by flaming fires with that of an electrochemical sensor, which is used to detect CO. Since carbon monoxide is present in all fires, having both detection chambers work together in one alarm is a breakthrough in the fire safety industry. When either sensor notices a potential hazard, it will communicate with the other. Depending on what is detected, the alarm will adjust its smoke sensitivity in order to better discriminate between a real hazard and a false one. This constant communication enhances the alarm's overall performance in all fires, and significantly reduces the potential for a nuisance alarm.


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Technical Specs

Kidde Carbon Monoxide / Smoke Alarm KN-COSM-XRT-B 21007450 Techs and Specs

  • Model
  • Power Source
    Battery - 3 AA
  • CO Sensor
  • Smoke Sensor
  • Audio Alarm
    85dB at 10 Feet
  • Battery Backup
    9 Volts Battery
  • Temperature Range
    40 Degrees F to 100 Degrees F
  • Size
    5.75 Inch diameter x 1.7 Inch depth
  • Humidity Range
    5% to 95% relative humidity (RH)
  • Weight
    1 Pound
  • Warranty
    5 year limited

Kidde Carbon Monoxide / Smoke Alarm KN-COSM-XRT-B 21007450 Features

  • Voice Alarm - Announces the hazard type detected thereby helping to speed up the correct reaction to the hazard detected. Alarm announces "Fire Fire" when a smoke or fire hazard is detected and announces "Warning Carbon Monoxide" when a CO hazard is detected
  • Combined Carbon Monoxide and Smoke Alarm - A single unit can be installed where previously, two were needed. Reduces installation time and helps to keep home decor attractive
  • Test/Reset Button - Tests alarm circuitry and triggers the voice announcement
  • LEDs - Two LEDs are provided. Flashing green for normal operation and flashing red for alarm condition
  • Low Battery Warning - The unit warns of a low battery condition by announcing "low battery" and by initiating an alarm chirp and activating a flashing red LED
  • Battery Powered - Provides protection even during power outages when many fire and carbon monoxide incidents occur
  • Battery Safeguard - Ensures the unit cannot be accidentally mounted without batteries installed
  • Hush Feature - Temporarily silences nuisance alarms