Worried about your fridge or freezer temperature? Stop guessing and start knowing with this La Crosse Technology wireless thermometer set. It lets you monitor the temps of both your fridge AND freezer from one handy display station without ever opening the doors (saves energy!). The kit includes two wireless sensors – you put one in the fridge and one in the freezer. The digital display is super versatile: it has a magnetic back to stick right on your fridge door, a fold-out kickstand for your counter, or a keyhole to hang on the wall. You can set custom high and low temperature alerts, so it'll beep and flash if things get too warm or too cold (perfect for food safety). It even keeps a history log with time/date stamps, so you can track if there were any issues. It shows the current time and date too. The display runs on 2 AAA batteries and each sensor needs 2 AA batteries (batteries not included). You can switch between Fahrenheit and Celsius, and choose to show temps with or without decimals. A super useful, affordable gadget for any kitchen to ensure your food stays perfectly stored.