The ProTemp S1 comes in 3 versions: the Universal Version, the BGE (Big Green Egg) Version, and the 5.5” Special Edition. Your choice depends on the size of the gauge hole on your grill or smoker.

1.Universal Version: This model has a base stem diameter of 7.8 mm (0.3 inches) and is compatible with most grills and smokers, including Weber, Kamado Joe (except Big Green Egg), drum, offset, and kettle grills. It’s ideal if your grill’s gauge hole is approximately 0.3 inches or larger.

2.BGE Version: Designed specifically for Big Green Egg grills or other grills with smaller gauge holes like Primo XL Oval, this version has a thinner base stem diameter of 4.1 mm (0.16 inches). It’s perfect for Big Green Egg, Primo XL Oval, or similar grills with smaller ports.

3. 5.5” Special Edition: Its base stem diameter is the same as the Universal Version, at 7.8 mm (0.3 inches), but its stem length is longer, at 5.5 inches, making it suitable for devices where the thermometer is farther from the food.

Please measure the diameter of your grill’s existing thermometer port to ensure the best fit. If the hole is 7.8 mm (0.3 inches) or larger, the Universal Version is suitable. For smaller holes, such as those on a Big Green Egg, choose the BGE Version.

For installation, the ProTemp S1 easily replaces your existing analog gauge by loosening the fixing nut and inserting the S1 through the hole. If your device doesn’t have an existing gauge, you may need to drill a hole to install it (avoid drilling ceramic grills).

If you still have questions, please share the specific model of your grill or smoker, so we can confirm the best version for you. Come join our Facebook group to connect with others, share tips, and see how everyone’s having fun with our product!
https://www.facebook.com/groups/chefstempofficial

Happy grilling!