What is a cheap carbon monoxide detector for inside a car?

They may exist, but you don't need one. Unlike your home, your car is never completely sealed (well technically, your home is not completely sealed either, but it's sealed better than your car). Have you noticed that when a car hits the water, it immediately starts to fill up on the inside? read more

This will help to keep air circulating through the car, and if you do this one thing, I can guarantee you will never suffer any ill effects of carbon monoxide in your car's cabin. You would literally have to run the exhaust directly into the cabin to suffer any ill effects with the fan on. read more

Pocket CO Detector. This tiny, portable low-level carbon monoxide detector is a serious entry into the market. Its small size and weight make it ideal for use in travel – driving, flying, going anywhere. It can be attached to a set of keys or clipped on your clothing. Despite its name, it is not designed to be used in your pocket. read more