With a large face and bigger numbers, the classic Freezer/Refrigerator Thermometer is great for those large applications where you just want to make sure of the temperature at a glance. Features Extra large 3 1/4" dial. Range -20°F to 80°F and -20°C to 20°C. Colorful blue and yellow graphics with safe temperature zone indicators. Red pointer. Glass lens. Durable stainless steel casing. Hangs or stands. NSF listed.