The Escali AHF1 Refrigerator / Freezer Dial Thermometer will help you monitor air temperatures in cold storage environments to maintain food safety. The safe air temperature zone for cold storage is indicated on the dial face as well as related HACCP food safety tips. The durable stainless-steel design is NSF certified and easy to clean. Measurements: 11 Length/Inches Assembly: Assembled Base Material: 100% Stainless Steel Care: Hand Wash Country of Origin: Imported