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Kidde 210006377 Combination CO/Smoke Detector - Interconnectable

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Part Number: 21006377

  • Combination CO and Smoke detector in one
  • Interconnectable (up to 24 Kidde devices)
  • 5 year limited warranty
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  • Buy 4 or more -  Save 14% $64.79



Carbon Monoxide/Smoke Combo Alarms provide two important safety devices in a single unit. These alarms with Smart Hush activation include a voice warning system that announces "Fire", "Carbon Monoxide" and "Low Battery". These technically advanced combination alarms use ionization sensors to detect fire. They are easy to install, suitable for all living areas and have a five-year limited warranty. Click on Technical Specifications tab for complete product info.

Discounts available for large purchases. Please fill out a request for a quote or contact customer service at 1-800-511-8652.

We carry a complete line of Carbon Monoxide Detectors and Smoke Alarms.


  • Power Source: 120VAC w/ 9V Battery Backup (battery included)
  • Sensor: Electrochemical
  • Audio Alarm: 85dB at 10 ft.
  • Size: 5 3/4”Dia. x 1 7/10”Depth
  • Weight: 1 lb
  • Interconnect: Up to 24 Kidde devices (18 initiating)
  • Warranty: 5-year limited

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