True North® Freezer Thermometer, Heathrow Scientific®
Digital Thermometers with Probe
Monitor 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 °C or °F. Unit includes one AAA battery.