Oh, there are plenty of options out there, both cheaper and more expensive. Plenty that will work. I used to use a cheaper one, but hated not knowing how much battery was left. This one allows me to be confident that my batteries are fully charged for a weekend of camping.
This is a good CO monitor. But its about twice the cost of other CO monitors. I'm wondering if some of the cheaper ones can work?
Oh, there are plenty of options out there, both cheaper and more expensive. Plenty that will work. I used to use a cheaper one, but hated not knowing how much battery was left. This one allows me to be confident that my batteries are fully charged for a weekend of camping.