First Alert CO710 Carbon Monoxide Detector with 10-Year Battery and Digital Temperature Display , White

I like this model because you have the option to simply put it on a shelf if you like.

We never travel without this carbon monoxide detector! Most places we stay don’t have one, so we always bring our own. On our Leopard 40 catamaran, we keep one in every cabin plus the salon and galley, and we also take one along when staying in Airbnb or Vrbo rentals. The one time we didn’t bring it was while hiking Acatenango in Guatemala. After a 7-hour climb to base camp, we were freezing and exhausted when our guide lit a fire. Smoke filled the tiny hut and we woke up with splitting headaches -classic carbon monoxide exposure. That scary moment taught us a lesson: no matter where we go, even up a mountain, this detector comes with us. The battery lasts a long time, the digital temperature display is a great bonus, and the alarm is loud enough to wake you immediately. Durable, reliable, and truly a must have for safety at home, on a boat, or while traveling. Highly recommend!

There are no 9V batteries to replace with this unit. It is rated to work for 10 years without a battery change. You will save a lot of time and money by not having to put in a new battery each year. In addition, it has a temperature display built in. This is very handy if, for example, you put this in a spare bedroom that is not heated all the time and you want to check the temperature.

this is a good replacement detector.. I would’ve given five stars, except as others mentioned. The mounting holes are not the same as older models from the same brand.

Very simple: unpackage, press the button, place on table or desk.

Simple to install, works extremely well and the size fits almost anywhere. If something saves your life, is it a good value for the money, you bet it is! Peace of mind enough to move into a place without Carbon Monoxide threat. It's a bonus that it's also a room thermometer.

A lot of people were complaining about the thermometer feature on this thing being inaccurate. It was certainly higher than it should’ve been when I first unboxed it, but sitting in my room for a day it’s now showing the exact same temperature as my thermostat. Not an instant read thermometer by any means, I put it above a stove and it took at least 30-40 seconds to climb up just one degree. But from my experience it’s certainly accurate enough. Oh yeah, and it’s probably a great CO detector too. Plenty loud for sure.

Perfect size for travel and has an off switch for when it’s in my backpack. Plus, the battery is built-in, so no need to pack batteries. Doubles as an extra detector when home.