We offer two temperature gauges. They read from 100F to 475F, good ranges for smoking, barbecuing and grilling. The larger model, the BT-2, has a 3" dial.
When you add a BT-2 to your order, installation is easy because we drill the 7/8" hole in the lid for you. Insert the threaded part into the hole, and tighten it into place with the included washer & nut. It will stay in place. The threaded part on the BT-2 also fits 1/2" pipe thread fittings, in case you were wondering.
Both Old Smokey Temperature Gauges are made of heavy duty stainless steel. The dials are almost sealed (please keep them out of the rain or lawn sprinkler) and the lenses are made of glass.
Note - if you DON'T want us to drill the hole for temperature gauge installation, please let us know. Most people do want it drilled, though.