Carbon monoxide detectors are essential in every home. They keep your family safe by alerting you to dangerous levels of CO, so it’s important these devices are reliable, have a long battery life, and are easy to read. These 3 carbon monoxide monitors are the best of the best.

1) First Alert Dual Power Plug-In

First Alert’s carbon monoxide detector is a great pick for a few key reasons. The dual power design plugs into the wall, but has a front load battery for continuous protection through power outages. It also has a digital screen that allows you to see the CO level and battery power without pushing a button. At just $35 with a seven-year warranty, this detector is an affordable way to keep your family safe.

First Alert Dual Power Plug-In Carbon Monoxide Detector available from Amazon

2) Nest Protect Smoke & Carbon Monoxide Alarm

For smart home gadget lovers, Nest’s combination smoke and carbon monoxide detector can’t be beat. It comes in hardwired or battery powered options, and can be turned off and read from your phone. The alarm also gives you voice alerts before an alarm is about to go off, so if you’re filling the kitchen with smoke from a failed cooking experiment, you can easily silence the alarm while the room airs out. You’ll also get an alert on your phone while you’re out, so you know what’s going on when you’re not home.

Nest Protect Smoke & Carbon Monoxide Alarm available from Amazon

3) Kiddie Battery-Operated Combination Alarm

Like the Nest alarm, this Kiddie alarm contains a combination smoke and carbon monoxide detector, but at $32, it’s just a third of the price. The battery-operated model is easy to install, and the voice warning will let you know whether smoke or carbon monoxide was detected while reading of CO levels.

Kiddie Battery-Operated Combination Smoke/Carbon Monoxide Alarm available from Amazon

Outbrain