A guide to carbon monoxide...

CO detectors

CO detectors are also known as a carbon monoxide detectors, CO alarms, CO monitors, CO meters, and CO testers.

CO detectors are a specialized type of gas leak detector and are different than a CO2 detector, CO2 alarm, CO2 monitor, smoke alarm, or smoke detector.

There are several types of carbon monoxide detectors. Most, but not all detectors, are designed to conform to at least one of two major CO alarm standards.

Always pay close attention to manufacturer instructions for the installation and placement of CO detectors.

  • Always treat it seriously if you hear a CO detector beeping or "chirping".

  • Always treat the sound of a carbon monoxide alarm as "real."

  • Test your CO detector monthly - follow manufacturer instructions and replace batteries as needed.

  • Replace CO detectors according to manufacturer instructions (most recommend every five years).

Many newer models will "beep" to remind you to replace batteries and when the detector is near the end of its life. Not all detectors do this. Always remember to replace your detector and batteries - it could save your life.

The most important thing to do is buy a CO detector. Order one today if you do not have one.


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