I bought an older model obs that doesnt have the temp. gauge on the door what could I used inorder to know what temp. the smoker is at? thanks
a PID Controller that has a temp gage built in
Perhaps a Maverick ET-73? Dual probes, one for the meat, one for the box temp. Comes with a remote receiver so you can monitor the temp inside the box without going out to check.
Even a simple wired probe for 10 or 20 bucks.