This is the standard Tel-Tru Door Thermometer for use in wood pits or pellet grills that have a welded pipe thread on the lid. It will have a portion of threading to screw into that pipe thread. All models of Yoder Smokers wood pits use this method and very early Yoder Smokers pellet grills use this method. If you are unsure, please call the store for more information at 316-440-3950.