Digital Fridge Thermometer, Freezer Thermometer with 2 Wireless Sensors, Colour Screen, Alarm, Max/Min, Summer Time, Battery/USB Powered for Home, Kitchen

Two-Channel Hygrometer Refrigerator Thermometer: Our refrigerator thermometer is equipped with two wireless sensors that monitor the temperature and humidity in the refrigerator and freezer. The color-coded areas (yellow for indoors, green for sensor 1 and blue for sensor 2) clearly distinguish data from the three zones, making it easy to read. Alarm function: This digital refrigerator thermometer can set the maximum and minimum temperature alarms for both sensor areas. If the temperature exceeds the set range, the thermometer immediately triggers an alarm. The alarm stays active for two minutes, reminding you to fix the problem quickly to ensure food safety. Power supply and backlight: The refrigerator thermometer can be powered by 3 AAA batteries (not included) or a USB cable. The sensor is powered by two AA batteries (not included). When powered by batteries, the backlight can be turned on for 10 seconds (auto off after 10 seconds). When powered by USB, the backlight stays on and offers three brightness levels. Low and Portable Battery Indicator: When the battery of the refrigerator thermometer is low, a low battery icon appears on the screen to remind you to replace it. The back of the refrigerator/freezer thermometer also has a bracket, hanging disc and magnetic cover, allowing you to choose different installation methods according to your needs for more convenient use