Dual-Temperature Display & Max/Min Records: This digital refrigerator thermometer supports the display of indoor temp/humidity and probe readings on its 3-inch LCD screen, and records 24-hour or all time Max/Min temperatures. Great for optimizing storage conditions

Smart Temp Alerts & Trend Display: Set custom alarms (-40℉~104℉) with a 1-minute delay. No false alerts when the refrigerator is opened briefly! Watch the trend arrows to spot temperature fluctuations and switch temperature units according to your habits

Ultra-Long Waterproof Probe: The 59in/1.5m long flexible probe with suction cup measures temperatures from aquarium water to freezer without unplugging, and is tested to withstand temperatures between -40℉ and 212℉, with a refresh rate of every 10s to ensure accuracy

Versatile & Batteries Included: Designed for fridges, but as long as it is within the measurement range, it can be used in aquariums, pet terrariums, greenhouses, bathtubs, and even outdoor adventures! The included 2AAA batteries make the thermo-hygrometer ready to use when it arrives

3 Installation Methods: The freezer temperature monitor has a foldable bracket on the back —simply unfold it for tabletop placement, or fold it flat to hang (using the built-in hole) or attach magnetically to metal surfaces like refrigerators