Rubbermaid Commercial FGTHG600 Stainless Steel Grill Monitoring Thermometer, The grill monitoring thermometer is made of stainless steel. The grill monitoring thermometer has a large, easy-to-read dial that reads Fahrenheit and Celsius. it is NSF-approved and it has built-in removal clips for safe and easy removal from griddle. 2 inches long by 4.5 inches wide by 6.25 inches high. 2 pounds.