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Kidde Battery Operated Carbon Monoxide Alarm with Digital Display

Kidde Battery Operated Carbon Monoxide Alarm with Digital Display

  • | SKU 89642
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Product Description

This Battery Operated Carbon Monoxide Alarm from Kidde utilizes an electrochemical sensor to detect threats of hazardous carbon monoxide. Since carbon monoxide can’t be seen, smelled or tasted in the air, it is a leading cause of accidental poisoning deaths in America. This CO detector features a (3) AA battery operation with a slide-out battery door that gives immediate access to the batteries. An added safety feature makes it difficult to close the battery door without the batteries being installed. This detector also features a digital display that shows CO level and PPM (parts per million). The digital reading updates every 15 seconds. This easy to install alarm is ideal for all living areas of a house and has a 10-year life span.

Other Features:

  • Peak Level Memory – Displays the highest CO concentration measured since the last reset
  • Reset/Test Button – Tests the CO alarm circuit operation and offers immediate silencing of the alarm
  • Battery Operation – Offers reliable detection even during power outages
  • Two LEDs – Red illuminates in alarm mode while green illuminates when the AC power is present and the unit is operating normally
  • Low Battery Signal – Alerts users when the batteries need to be replaced

Model Number: 21008873


  • Power Source: (3) AA Batteries
  • Sensor: Electrochemical
  • Audio Alarm: 85 dB at 10 ft.
  • Temperature Range: 40?F (4.4?C) to 100?F (37.8?C)
  • Humidity Range: 5% to 95% relative humidity (RH)
  • Size: (L) 4.5” x (H) 2.75” x (D) 1.5”
  • Weight: 0.66 lbs.
  • Wiring: No
  • Interconnect: No


Misplace the instructions? No problem! Hartville Hardware is here to help. Below is the instruction manual for the Kidde KN-COB-B-LPM Carbon Monoxide Alarm. Read it before you buy it, or come back and download it if you have questions.

Kidde KN-COB-B-LPM Carbon Monoxide Alarm Instruction Manual

Warranty & Certifications

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