Wireless Interconnected Carbon Monoxide Detector, Replaceable Battery Powered CO Alarm with Digital Display and Peak Value Memory, XC01-WR, Pack of 2

This alarm is compact for travel, straight forward to use, and checks all the boxes! It comes with mounting hardware if you need it in a more permanent spot. It has a 7 yr battery too! Gives me peace of mind while traveling. Highly recommend

So far, works great. Easy to set up. Made well.

Love them Easy to put up and use

I bought one of these to bring with me when I travel – a lot of places I stay don't have CO detectors and I don't necessarily trust them to keep their appliances in good order. Looks nice, small and very lightweight, can easily stand up on your bedside table, seems to work. Haven't detected any CO yet, so can't promise anything there. Minus one star, however, because of a “feature” that prevents the battery compartment door from shutting unless you have a battery in it. I can understand why they added this, and for most people it's probably not even noticeable; it's probably a good idea for it to be annoying to not replace the battery if this is hung on the wall in your home. But given that there's no power switch (also expected and a good idea), it's obviously appropriate to take the battery out when I travel with it – the last thing I want is for my 90dB CO alarm to go off in my bag because the TEST button got depressed, and I'm not going to forget to put the battery in when I set it up. Having to carry the battery door separately from the rest of the alarm, or carefully press the tab down with a pencil to close it, is unnecessarily annoying. Not a dealbreaker – this alarm seemed the best in terms of size, weight, and general design for travel, and I'm not sure I'd pick a different one if I started over ­– but something to keep in mind.

I took this on a trip and now have it at home. I read so many stories of people being killed in hotels or airbnbs For one reason or another. I live in a condo complex and some neighbors died when another neighbor failed to properly turn off their car engine and the exhaust fume seeped into their unit. I have a similar unit to those folks so yeah, I like this little portable dectector . I test it everyy few weeks