Heathrow Scientific's True North® Freezer Thermometer protects your frozen samples from potential spoilage. The thermometer monitors temperatures inside your freezer or refrigerator with the added convenience of sound and flashing LED lights to alert out-of-range temperatures. Provided suction cup attaches the probe inside freezer/refrigerator while the thermometer secures to the outside with hook-and-loop tape. Convenient, large digital display shows freezer/refrigerator temperature plus ambient temperature. Handy switches toggle for freezer or refrigerator monitoring and °F or °C. Also includes one AAA battery.
Unit measures 136 x 19 x 28mm; probe cable measures 0.9m; probe measures 5mm OD x 17mm L. Set freezer range: 14.9° to -9.4°F (-9.5° to -23°C); set refrigerator range: 35.6° to 46.4°F (2° to 8°C).