If your pit does not have a hole, you can simply drill a 1/4" hole to attach the thermometer described previously. It is made of stainless steel and is very easy to install as you just need to insert the rod into the pit/smoker/grill hole and attach the included nut. EASY INSTALLATION: Wing nut threads for easy installation. install on your grill, oven or flat oven for convenient use. This thermometer ranges from 10-400 degrees Celsius / 50-1000 degrees Fahrenheit and is at cooking temperature. < p>This particular thermometer has a face of 5.2 cm.