Inaccurate refrigerator or freezer temperatures can cause food spoilage, increase food borne illnesses, damage the reputation of your establishment and cost you in time and money. Prevent these unnecessary events from occurring with the Refrigerator/Freezer Thermometer from Taylor. An extra large 3 1/4 in. dial with colorful blue and yellow graphics and safe temperature zone indicators make the Thermometer easy to read, easy to find in a full fridge or freezer, and easy to stay compliant with temperature regulations. The unit is constructed of durable stainless steel casting and glass, and can be hung or stood for the most accurate temperature reading. Temperature Range: -20F to 80F / -20C to 20C . - Stainless Steel - NSF listed - Dial diameter 3-1/4 in - Sold per each