Thermapen® ONE

SKU: THS-235-447

5-up: $97.00 ea.

In Stock

Order now, ships today

In Stock

Order now, ships today
Choose Thermapen ONE color before adding to cart

Thermapen® ONE

With full readings in ONE second or less, Thermapen ONE approaches the speed of thought—allowing you to focus exclusively on the quality of your work. Never has an instrument been able to achieve such speed and accuracy without sacrificing durability and usability...until now.

5-up: $97.00 ea.

Discount codes may not apply to Thermapen ONE

ONE. Second. Readings.
Thermapen ONE almost moves at the speed of thought...allowing you to focus exclusively on the quality of your work.

More Accurate
With an improved accuracy spec of ± 0.5°F (± 0.3°C), you’ll know your lightning fast Thermapen ONE readings are always accurate, as well.

Brighter Backlight
The automatic backlight is brighter and the light sensor is more sensitive to changes in ambient lighting conditions.

5-Year Warranty
The newly designed rugged, waterproof case features a 5-year warranty against defects.

With a newly designed battery compartment for easier access to the user settings and all the amazing features you loved in the Thermapen Mk4—auto-rotating display, motion-sensing sleep and wake mode, waterproof to IP67, NIST-traceable calibration certificate—you'll need to get ONE for yourself to understand the power of sub-second performance.

From the Blog

Backyard Cookouts—From Steaks to Chicken to Brats, You Need Fast Temps

Planning a cookout with friends and family? You need to be temping those steaks, brats and burgers! Avoid the dry-meat-cookout blues with the power of thermometry...

Spare Rib Temps: Barrel-cooked Glory

Outstanding taste and texture in spare ribs are not hard to master if you understand the basic principles of time and temperature during your cook.

Homemade Ice Cream: Temperatures for Smooth and Creamy Results

If you want a smooth, creamy ice cream—as opposed to a coarse, icy one—you need to take care with the ingredients and the temperatures.

Digital Instant-Read Thermometer: Winner

"Our former favorite instant-read thermometer, the ThermoWorks Thermapen Mk4, has been discontinued. We tested its replacement, the ThermoWorks Thermapen ONE, and found that we liked it even better than the old model. We highly recommend the ONE; it is our new winner."
Read the Review

ThermoWorks Thermapen ONE Review

"We tend to get picky with the reviews here and can generally find something that, at least in our opinion, could be improved. We’re hard-pressed to do that for the Thermapen ONE; there’s simply nothing, from a functionality perspective, that we think could be improved."
Read the Review

Thermapen One Review | Best BBQ thermometer

"This is the bestest, baddest thermometer you will ever get. It’s the best example of “buy once, cry once” in my entire BBQ journey. This may be the best thing I’ve ever bought…and the thing I’m most happy with...."
Watch the Review

"ThermoWorks Thermapen ONE is honestly the best instant read thermometer we've tested to date. So, if you like to have the best of the best, look no further and order ONE for yourself...."
Read the Review

Range-58.0 to 572.0°F (-49.9 to 299.9°C)
Accuracy±0.5°F (±0.3°C) from -4 to 248°F (-20 to 120°C) otherwise ±1.8°F (±1.0°C)
ResolutionFactory set to 1° (user reconfigurable to 0.1°)
Response TimeFull reading in 1 second (0.2 seconds time constant)*
Probe4.3 L inches, High Performance Type K Thermocouple
Display1 H x 1.54 W inches (25 H x 39 W mm) LCD, rotates 360°, Intelligent Backlight
Sleep Mode10 to 180 seconds, user selectable (user reconfigurable to disable)
Water ResistanceIP67
Operating Range–4 to 122°F (–20 to 50°C), max ambient limits of Thermapen body
Battery1.5 volt AAA, 2,000 hours typical (without backlight)
Dimensions6.1 W x 1.7 H x 0.74 D inches (156 W x 48 H x 19 D mm)
Weight0.25 lbs (115g)
Warranty5 years
CertificateIncludes NIST-traceable calibration certificate

* Response time defined as five time constants for 99.3% of actual temperature.

With full readings in just one second, Thermapen ONE is in a category by itself when it comes to “instant-read” thermometers. Thermapen ONE achieves a new standard of accuracy, as well—now accurate to ±0.5°F (±0.3°C)—so you know your readings are correct. To achieve this level of performance without resorting to algorithms or mathematical adjustments, Thermapen ONE truly pushes the boundaries of sensor and electronic measurement engineering.

  • New: Unparalleled speed with full temperature readings in less than one second
  • New: Industry leading accuracy to half a degree: ± 0.5°F (±0.3°C)
  • New: Brighter intelligent backlight display automatically illuminates in low-light and when the sensor window is covered
  • New: Easy access battery housing uses one common AAA battery for a 2,000-hour battery life
  • New: Five-year warranty
  • Motion-Sensing Sleep and Wake Mode: intuitively turns on and off—or when picked up or in use and off when set down to save battery
  • Patented 360° auto-rotating display uses accelerometer technology to intuitively turn right-side up
  • Shockproof, dustproof, and waterproof with an IP67 rating for water-tight seals
  • Foldaway design protects probe when not in use
  • Biomaster Antimicrobial Silver Ion Technology reduces microbial growth
  • Hand washable
  • Display temperatures in °F or °C, 1° or 0.1° resolution
  • Each Thermapen ONE includes a NIST-traceable calibration certificate verifying accuracy to national standards

The new Thermapen ONE includes professional level features at an affordable price, including an auto-rotating display, which uses accelerometer technology to detect screen motion/orientation for use in either hand (similar to smartphone orientation); a battery-saving sleep/wake mode; fully waterproof IP67 design; new brighter automatic backlight for use at night or in low light; 2,000-hour battery life using one AAA battery with new easy-access battery housing; and included NIST-traceable calibration certificate for increased confidence in its performance. Thermapen ONE lets everyone “seek perfection” when cooking at home, in the BBQ pit, or for daily use in professional restaurants, to measuring critical temperatures in labs, food processing plants, grocery stores, and more.


Download Thermapen ONE Operating Instructions

Download Thermapen ONE Product Info Sheet