Prevent food spoilage by accurately monitoring your refrigerator and freezer interior temperatures. Large Celsius and Fahrenheit scales enable at-a-glance reads. Shatter-resistant lens minimizes the potential for breakage. Thermometer may be mounted horizontally or vertically. Meter Type: Thermometer; Scaling System: Celsius; Fahrenheit; Measurable Range: -30�C to 30�C; -40�F to 80�F; Analog/Digital: Analog.