The Tel-Tru BQ300R thermometers are designed to be recalibrated. This is to say that the can be recalibrated over and over again without damage. These are only available in one style dial face and 3 different stem lengths.
The Tel-Tru BQ300R is an upgraded version of the popular BQ300 barbecue thermometer. Made for long term use it has a 7 year manufacture warranty.