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 TruTemp Refrigerator/Freezer Thermometer from Taylor. Bright blue, red and green graphics with safe temperature zone indicators make the propylene glycol filled Thermometer easy to read, easy to find in a full fridge or freezer, and easy to stay compliant with temperature regulations. The non-toxic liquid is designed to simulate food temperatures for the most accurate and stable readings. Constructed of plastic and glass, the unit can be hung or stood to save space. Temperature Range: -20F to 60F / -30C to 30C. - Blue/Red/Green - NSF listed - Length 6 in - Width 1-1/4 in - Sold per each