The Lightning-Fast Thermapen One Is the Only Instant-Read Thermometer You Need, and It’s 30% Off

We’re steadfast in the belief that being able to take quick, accurate temperatures will result in better cooking. To achieve this, we’ve long stood behind the use of meat thermometers, wireless thermometers, and infrared thermometers—you name it, we’ve tested it. This includes, of course, the ever-handy instant-read thermometer, which should give any cook lightning-fast temperature readings that are accurate and consistent. No other thermometer does this as impressively as the ThermoWorks Thermapen ONE, a favorite of ours for years that is on sale now for 30% off.

ThermoWorks Thermapen ONE

Why It Won Our Review

ThermoWorks already makes some of our favorite thermometers, including its leave-in probe thermometer, so it’s no surprise that the brand’s instant-read model is a top performer. During our tests, the Thermapen ONE delivered temperature readings in just two to three seconds, faster than the rest of its competitors. Time is of the essence, of course, as we know that the longer it takes to achieve a reading, the more heat is lost from your open oven or grill. We even compared it to our previous favorite, the now-discontinued Thermapen Mk4, and it performs just as well. As associate editorial director Riddley Gemperlein-Schirm puts it in her recommendation, “The Thermapen ONE is the very best money can buy. It’s one of my favorite things to gift any cook or baker.”

The Thermapen ONE also has a big, backlit display that rotates, making it easy to read from any angle—a feature that’s especially appreciated during quick temp readings over hot roasts in the oven. Not only was it the fastest thermometer we tested, but it was the most consistent and accurate when reporting on a sous vide bath set at 134°F, ice cold water (32°F), and boiling water (212°F). We also like that the probe can open up to 180 degrees, so it can be easily and quickly adjusted based on the angle of the reading.

Of all the thermometers we tested, the Thermapen ONE is the only model with a waterproof rating of IP67, which makes it easy to wash in case kitchen projects get messy. It automatically turns on the moment you pull out the probe (or when you pick it up, if the probe is already out). This cuts out any time you might otherwise waste fiddling with an on/off button. We simply think the Thermapen ONE is the best instant-read thermometer you can get your hands on, and right now, it’s an impressive 30% off. Don’t wait to pick it up ahead of preparing your Thanksgiving feast or as a holiday gift.

Key Specs

• Features: Backlight display, rotating screen, rubber nonslip grip edge
• Accuracy: +/- 0.5°F (+/- 0.3°C) from -4° to 248°F (-20° to 120°C)
• Probe length: 4.3 inches
• Measurement range: -58°F to 572°F
• Waterproof: IP67
• Battery life: 2000 hours
• Warranty: 5 years
• Dimensions: 6.1 x 1.7 x 0.74 inches 

FAQs

Is the Thermapen ONE waterproof?

Yes, the Thermapen ONE has a waterproof rating of IP67, so you can wash it if you need to.

Does the Thermapen ONE have a 360-degree rotating screen?

Yes, it’s the only thermometer we tested with a 360-degree auto-rotating screen.

Why We’re the Experts

• An Uong is a commerce writer for Serious Eats and Food & Wine.
• An has had her Thermapen IR (a sibling to the Thermapen ONE) for years and it’s one of her most treasured kitchen tools.