For about the last 4 or 5 years I've been using the one that WalMart sells. $15.00. No problems except that you will likely have to replace the probe & cable until you learn how not to burn it up. Simply, I take about a 3" piece of long aluminum foil and wrap the probe & cable with it.
One other alternative is to get the Maverick ET-7 which is a dual meat probe. I frequently use the second probe as and ambient air temp. Also available at Amazon for about $40 bucks. I've recently upgraded to their hi-temp probes and have yet to be able to give a report.