CDN 1751038 GTS800X Grill Surface Thermometer, Silver Place directly on grill Instrument range:100 to 800-degreef/40 to 425-degreec Features a large display that is 2-1/4-inch (5.7 cm) diameter for easy reading, even in low light Features two tabs on the top that can be used to lift and move the unit Nsf certified: color-coded scale