When you travel, a carbon monoxide alarm probably isn’t high up on your packing list—but it probably should be, experts say.

This simple unit flashes a red light indicator light, blasts an ultra-loud, 85-decibel alarm when CO is present, and logs the last time that carbon monoxide was detected.

A carbon monoxide alarm is a crucial safety feature of any home, to audibly alert you of otherwise undetectable – and deadly – carbon monoxide leaks.

It lacks smart home connectivity, but this smoke and CO detector offers every other safety feature you could ask for, and it interconnects to other detectors.

Low-level carbon monoxide detectors can pick up on the toxin even sooner. “You can get sick from low levels of CO exposure over a certain time frame.