Common Questions About USI Plug-In Carbon Monoxide Alarms

Where should I install carbon monoxide alarms?

Carbon monoxide alarms should be placed inside of every bedroom and outside of areas where people usually sleep. It should be noted that many states are now requiring the installation of a carbon monoxide alarm inside of each bedroom. Carbon monoxide alarms should also be installed on every level in multiple story dwellings. If you have a basement, install a carbon monoxide alarm at the top of the basement stairs, and in each separate sleeping area. Carbon monoxide alarms should also be placed at least 15-20 ft. away from furnace or fuel burning heat sources.

What areas should I avoid installing a carbon monoxide alarm?

Do not install carbon monoxide alarms in garages, kitchens, furnace rooms, or in any dusty, dirty, humid, or greasy areas. Do not install co detectors in direct sunlight, or areas subjected to temperature extremes. These areas include crawl spaces, unfinished attics, un-insulated or poorly insulated ceilings, and porches. Carbon monoxide alarms should not be installed in outlets covered by curtains, heavy furniture or other obstructions. Do not install in turbulent air near ceiling fans, heat vents, air conditioners, fresh air returns, or open windows. Blowing air may prevent carbon monoxide from reaching the CO sensors.

What are some common sources of carbon monoxide (CO)?

Carbon Monoxide is a colorless, odorless, tasteless gas that's produced during incomplete combustion of any fuel like natural gas, charcoal, gasoline, kerosene, wood, gas, oil or coal. Common sources include:

Will carbon monoxide alarms detect explosive gas leaks?

No, not unless it is specifically marked as an explosive gas alarm. USI CO Alarms are single function and react to carbon monoxide only. To detect explosive gas, you’ll need an explosive gas alarm. USI Plug-In Combination Alarms detect carbon monoxide and natural gas.

Why does my CO alarm "chirp" approximately once every minute?

The CO alarm chirps to indicate a "low battery" condition, meaning the battery needs to be replaced. Battery powered CO alarms will chirp a minimum of 30 days before the battery completely loses power.

AC powered CO alarms with battery backup will chirp indefinitely (assuming AC power is present) if battery power is low (or battery is removed) until a fresh battery is installed. Approved replacement batteries are listed on the back of each CO alarm.

Why should I go with a USI Plug-In CO Alarm?

USI Plug-In Carbon Monoxide Alarms offer extreme flexibility as they can easily be inserted into an outlet (no additional wiring necessary). 120v plug-in carbon monoxide alarms are also capable of sensing natural gas (methane). Both versions of the USI Plug-In CO Detector include a 9v battery for continued coverage in the event of a power outage. The use of microprocessor intelligence eliminates nuisance alarms, ensuring that you are warned of actual threats as opposed to annoying chirping. Both plug-in co alarms also come equipped with a silence/test button and an end or service warning that will alert you when it’s time to replace the co alarm (approximately 7 years after activation). Protect yourself and your loved ones from the many dangers associated with carbon monoxide and natural gas (methane) with easy to install plug-in carbon monoxide alarms.

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