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Kidde KN-COB-IC-KA-F Replacement Kit to Replace Old Firex 120V AC power CO Alarm
Kidde KN-COB-IC-KA-F Replacement Kit to Replace Old Firex 120V AC power CO Alarm

Need to replace old alarm?
PLEASE READ. You should replace ALL your old Firex alarms with this replacement kit to maintain communication between all alarms. This kit can replace the following old Firex models WITHOUT REWIRING:
  • Firex 10000
  • Firex 6035
  • Firex 6040

With this replacement kit, you can perform 3-easy-step installation:

  1. Replace the ceiling mounting bracket with new one (included).
  2. Install quick convert adapter and attach existing wiring to the alarm.
  3. The new alarm will now be interconnected and compatible with your Firex alarm system.

If you want to rewire, get the regular Kidde KN-COB-IC without the adapter.

Our Price: $48.48
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Technical Spec Downloads
Technical Spec

The Kidde KN-COB-IC is an AC wire-in carbon monoxide alarm that warns you and your family of dangerous carbon monoxide levels. It includes multiple contractor friendly features to ensure easy installation and minimal troubleshooting. This alarm interconnects with up to 24 Kidde devices (of which 18 can be initiation) including smoke alarms, CO alarms and heat alarms on one wiring network. The KN-COB-IC includes a 9V battery backup along with a 5 year limited warranty.

This product Kidde KN-COB-IC (900-0120) replaces Firex 10000, Firex 6035 and Firex 6040.

Features & Benefits

  • Battery Pull Tab Eliminates battery installation time and keeps battery fresh.
  • Adjustable Mounting Bracket Allows for fast installation and perfect alignment.
  • Quick Connect Installs quickly with snap-on harness.
  • Sealed Cover Reduces nuisance alarms. Sealed to protect sensor from contaminants prior to installation.
  • Tamper Resist Locking Feature To deter battery and alarm theft.
  • Alkaline Battery Backup for continuous protection in case of power failure.
UPC # 0-47871-00120-0
Part # 900-0120
Power Source 120VAC, 60HZ, 9V battery back-up
Audio Alarm 85dB at 10ft
Temperature Range 40F (4C) to 100F (38C)
Humidity Range 5%-95% relative humidity (RH)
Sensor Electrochemical
Size 5.75" diameter x 1.8" depth
Weight 1lb
Interconnects Up to 24 Kidde devices
Warranty 5 year limited

Kidde KN-COB-IC diagram

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