Plug-in Carbon Monoxide Detector – 3-in-1 CO Level Alarm with Temperature & Humidity Sensor, Easy Install Safety Device
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Know your carbon monoxide level at a glance
Carbon monoxide has no color and no smell, so the only way to know where a room stands is a number. This plug-in 3-in-1 monitor puts that number on a clear digital screen you can read from across the hall: the live carbon monoxide level in parts per million, with room temperature and humidity beneath it, and an alarm that sounds when levels climb.

Shown in Black. Also available in White.
A live reading, so you can see the room at any moment
Most alarms sit silent on a ceiling and leave you guessing. This one shows you the answer every time you walk past. See whether the kitchen sits at zero all day, whether the hallway outside the bedrooms is clear, and what the room is doing when the range or the heating comes on. The second line carries temperature and humidity, which makes it just as useful in a nursery, a spare room over a garage, an RV or a rented apartment.

It hangs flat off a standard outlet and covers only the socket it is using.
Plug it in and it starts reading
No drilling, no wiring, no bracket, no batteries to remember. The plug is built into the back of the case, so you push it into a wall outlet and it powers up and starts reading within seconds. Move house, or move it from the hallway to the bedroom, by unplugging it and plugging it in somewhere new. Buyers put it in hallways, kitchens, apartments, older houses and RVs.

The plug is part of the case. The slots down the side are the sensor vents, so leave them open to the room.
Where it works best
Carbon monoxide mixes fairly evenly through room air, so placement matters more than height. Choose the rooms where a fuel-burning appliance lives or where people sleep, with open air around the case.
- Great spots: a hallway outside bedrooms, a landing, a room with a gas range, a room next to the garage, an RV or a hotel room.
- Give it a few feet of clearance from fuel-burning appliances so it reads the room rather than the appliance's start-up output.
- Keep the side slots open to the room and it reads at its best.

A kitchen outlet a sensible distance from the range gives a true read on the room.
Rated 4.6 stars by 20 buyers
“Love that it has a digital screen showing the levels. Makes me feel a lot more comfortable in my home.” Laura S.
“Super easy to install, just plugged it in and it started working right away. Gives me real peace of mind knowing my family’s safe.” Sarah M.
“I like that it has both a visual display and sound alarm. Plug and play, no fuss. Can’t go wrong for the price.” Mike Z.
“Bought two for different rooms both work great. I tested them and the alarm is loud enough to wake anyone up!” Natalie F.
“Installed in my RV for extra safety and it’s been working great. Compact and doesn’t take up much space.” Jason M.
“Been plugged in for months and no issues at all. I check it weekly and it’s always functioning perfectly.” Chris W.
Every order is covered by the Gear Elevation 90-day money-back guarantee, so you can try it in your own home for three months.
Three buttons, everything at your fingertips
Press once for the peak reading history, once to run a self-test that sounds the alarm, and once to switch the display and adjust its brightness. Test it weekly and the screen shows you it is running every day. If the alarm sounds or the level climbs, get everyone into fresh air, call emergency services from outside, and wait for responders to say it is safe to go back in.

Three physical buttons: peak-reading history, self-test, and display mode and brightness.
Specifications

The White colorway. Same unit, same display.
See your air at a glance, starting today
A clear carbon monoxide reading, temperature and humidity, and an alarm that sounds when levels climb, in a compact monitor that plugs into any outlet and is covered by our 90-day money-back guarantee. Add it to your cart and put a live number on the wall tonight.
It runs from your wall outlet, so it is on whenever your outlet is. Keep the side vents open to the room and run the self-test weekly.