Alarm function: when the temperature exceeds the set temperature value, the buzzer will sound an alarm. Wide range of applications: suitable for household refrigerators, supermarket freezers and other fields.
eBay
1PC FY-10 Min LCD Display Digital Thermometer Car Refrigerator Aquarium Fish Tank Embedded Electronic Digital Thermometer
Aliexpress UK
With a built-in max-min function for both temperature and humidity. Readings can be quickly reset with a button on the back. Humidity Accuracy: +/- 5% (30 to 85%RH), otherwise +/- 8%. Temperature Accuracy: +/- 1°C (0 to 40°C), otherwise +/- 2°C.
eBay
Easy-to-read screen with backlight (with a simple touch button) shows the current temperature and humidity and also the maximum and minimum levels reached since the last reset. Humidity Accuracy: +/- 5% (30 to 85%RH), otherwise +/- 7%.
eBay
Product weight: 85+10g.
eBay
eBay
Q. How can this Digital Max Min be placed?. You can hang, screw or nail this product to a wall or sturdy object. Or simply place it wherever you want. Range: -10 to +40°C. What's in the Box?. All Products Include Two Year Warranty .
eBay
Press °C/ °F button to select centigrade or fahrenheit. STAND AND HOOK FOR HANGING: Equipped with foldable hook, which can be used by hanging in refrigerator and freezer rack or free standing only, it's very compact and convenient to keep.
eBay
The top has a roof design, and the battery slot also has a simple waterproof structure.
eBay