Kidde 21010045 C3010 Worry-Free Carbon Monoxide 10 Year Sealed Battery Smoke Alarm, 1 Pack [Standard Packaging, Without digital display] $23.8

Kidde 21010045 C3010 Worry-Free Carbon Monoxide 10 Year Sealed Battery Smoke Alarm, 1 Pack [Standard Packaging, Without digital display] $  23.8

This is the lowest price ever on Amazon, good if you like long lasting lithium battery

https://www.amazon.com/gp/product…UTF8&psc=1