Since your vehicle and possibly gas cans, oil, etc are in the garage, a Smoke Detector is an inexpensive peace of mind. I found a First Alert model that comes with a 10 year Lithium battery for about $16. The 10 year Lithium batteries normally cost $10 for just the battery. The model number is SA305CN.
Make sure to avoid one with a Carbon Monoxide detector built in since your car emits Carbon Monoxide.
I found mine at Ace Hardware, but click below for the same model at Amazon.
First Alert Smoke Detector model SA305CN at Amazon
This post is not a product endorsement
