The 10 Best Refrigerator Thermometers

As long as there are no major obstructions, the SensorPush Wireless (appx. $50) lets you monitor conditions with your smartphone from up to 325 feet away. It can store data for 20 days itself, but the companion app has no limitations, so you can keep records over the long term.

The Rubbermaid Commercial Instant Read (about $7) lives up to its name, because the face is clear, uncomplicated, and a snap to understand. The large red pointer offers great visibility, while the safe zone markings are handy for forgetful cooks.

The Wrenwane Digital (appx. $10) bills itself as no frills, and it’s easy to see why. It shows only the temperature, with no extraneous information, in big digits that won't require any squinting. This means you don’t need a degree in engineering (or a preteen) to set it up.

This two-pack of Unigear Waterproof (about $18) lets you keep tabs on your fridge and freezer. Each has an LCD screen that shows minimum and maximum temperatures, a practical feature if your home is prone to power outages. It comes with a screwdriver for accessing the battery.

For commercial environments, the DayMark Stainless Steel (about $16) is a great choice, since it is certified by the National Sanitation Foundation. It's made to last, with a durable metal hanging loop and a housing that can be wiped clean in a flash.

No matter where you are, you’ll always know how cold your beer is with the Ideal Sciences Temp Stick (about $149). This nifty device uses Wi-Fi to send information to your computer, tablet, or phone, without requiring any ongoing subscription fees.

The Taylor TruTemp is capable of measuring from -20 to 80 degrees Fahrenheit, and is marked for Celsius readings, as well. There isn't anything fancy about it, but it is wallet friendly and can stand on or hang from a wire shelf.

You don't have to open the door to read the CDN TA20 (around $9), which helps to save energy. Its built-in alarm provides audible and visual alerts when the temperature rises above 46 degrees in the fridge or the freezer goes above 15, though it can only monitor one at a time.

About as simple as they come, the Evelots Hanging (appx. $8) come in a two-pack equipped with red and blue markings that make them super easy to read at a glance. They’re compact and don't get in the way of any of your produce or jars and bottles.

With the push of a button, you can switch between the temperature in the room to that in the fridge, making the IAP Sales Alarm (around $19) quite versatile. As you might have guessed from the name, it can alert you when it detects a level that is too hot or cold.