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Thermapen® ONE Thermometer
Fast and accurate digital kitchen thermometer
- Lightning-fast one-second readings
- High accuracy of ±0.3 °C
- Reads between -49.9 and 299 °C
- Durable IP67 waterproof design
- Intuitive 360° auto-rotating display
- Designed and handmade in the UK
- 5-year guarantee
- Free calibration certificate
- Also available in limited edition colours
The Thermapen ONE is a fast and accurate digital food thermometer that helps to perfect every cooking challenge. Ideal for everything from Sunday roasts and summer BBQs to cakes and confectionary. Thermapen will give you confidence that every summer dish is done.
Cook with Chef-Grade Precision
Thermapen thermometers are loved by professional chefs and home cooks worldwide for their high performance, sleek designs and quality construction. Choose Thermapen to take every cook to the next level with precise results that last.
Designed & Made in Britain
Designed & Made in Britain
Made in Britain by leading temperature experts with over 40 years of experience, every Thermapen is made with quality at the heart. Its wide range of premium and versatile features make it perfect for any cooking challenge, from baking to BBQ.
How it Works is So Simple
OPEN THE PROBE
The sleek, buttonless design means you can simply open the probe to start measuring.
INSERT INTO FOOD
Place the probe into the centre of any food or liquid to read the temperature.
CLEAN & CLOSE
The thermometer will automatically power off when set down.
A Thermometer Like No Other
FAST & ACCURATE
1-second readings accurate to ±0.3 °C — free calibration certificate included
INTUITIVE DISPLAY
Auto on/off, backlight and 360° rotating screen
IP67 WATERPROOF
Robust, fully waterproof and built to last
5-YEAR GUARANTEE
Hassle-free repairs and replacements from a UK manufacturer
WIDE RANGE
Readings from -49.9 to 299 °C, ideal for confectionery, frying oil and more
Made by Temperature Experts
Thermapen thermometers have been designed using UK-leading expertise in thermometry. With over 40 years of temperature knowledge, we start creating every product with in-depth market research and finish by putting them together using only the highest quality parts. We even carry out 13 quality checks on every Thermapen before it's ready to ship to customers.
Certified Accuracy
Each Thermapen is calibrated by hand in our UK calibration laboratory and comes with a certificate to show this. With this certification, you can be sure your Thermapen will deliver high-accuracy readings that meet professional chef standards.
Why People Love Thermapen
★★★★★ 5/5
It simply just works instantly reliably I have complete trust in the readings and the results with cooked meats speak for themselves. Worth every penny.
sIMON R.
★★★★★ 5/5
I bought the Thermapen One to replace a cheaper brand version and you can immediately see the difference in performance ! This thing is seriously quick and accurate! Chuck the others out and buy
1 good one!
1 good one!
STEPHEN D.
★★★★★ 5/5
Absolutely love the Thermapen, as useful for jam and candy making as properly cooking meat. Mine was a gift, and in turn we have gifted them to others. Every kitchen should have one.
Merith G.
Not sure which Thermapen is for you?
Check out our Buyer's Guide to help you choose.
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Temperature community
Discover what it means to be a part of the Thermapen
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Data sheet
| Range: | -49.9 to 299.9°C (-58.0 to 572.0°F) |
|---|---|
| Operating Range: | -20 to +50 °C |
| Resolution: | 0.1 °C/F or 1°C/F - user configurable |
| Accuracy: | ±0.3°C (-19.9 to 119.9 °C) ±0.4°C (-49.9 to 199.9 °C) otherwise ±1 °C |
| Battery: | 1.5 volt AAA |
| Battery Life: | 2000 hours (without backlight), 100 hours with backlight on |
| Sensor Type: | K thermocouple |
| Display: | 14.3mm (horizontal) x 11.85mm (vertical) LCD |
| Backlight: | yes |
| Dimensions: | 19.3mm x 48.2mm x 156.2mm |
| Weight: | 115 grams |
| Case Material: | ABS plastic which includes BioMaster product protection |
| Country of Manufacture: | United Kingdom |
| Guarantee: | five years |
| Water / Dust Resistance: | IP67 protection |
| Measurement Scale: | Celsius / Fahrenheit |
| Certification: | Free traceable calibration certificate |
| Conforms to Standard: | EN 13485 |
| Warranty: | 5 years |
Specific References
| ean13 | 5024368187864 |
|---|
Reviews (383)
95% (362)
4% (17)
0% (1)
0% (1)
1% (2)
Excellent product
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Simple, well designed and properly calibrated. You can rely on the temp readings.
By jerry y. on 10/01/2026
Fast, accurate readings with Thermapen
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We used our Thermapen for the first time over Christmas and were delighted that it did exactly what claimed to do. Monitoring the temperature of the turkey was both simple and very reassuring with the readings adjusting quickly as the probe was pushed through the meat. It was easy to find the 'cold spot' and ensure that was at a proper temperature before taking the turkey out of the oven. We like the ease of starting the thermapen (no buttons), the speed of response, the clarity of the reading and the lightness of the instrument. Fantastic!
By Ian S. on 09/01/2026
A ‘Must Have’ kitchen tool.
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My Thermopen has been an invaluable tool in my kitchen for many many years, it never fails. It also makes for a great Christmas or Birthday gift to family and friends.
By ian C. on 07/01/2026
Excellent
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Bought for my grandson who is a chef. He is thrilled to bits with the speed and accuracy of the readings. It will save precious time at work.
By Christine B. on 31/12/2025
Ridiculously good.
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I bought the Thermapen One in the hope I’d deliver a moist turkey for my family at Christmas. I’m known for delivering a dry turkey meat and I wanted to change that family view. The Thermapen One was sensational in its accuracy of cooking at the correct temperature without the risk of overcooking, it is expensive, but well worth the investment.
By Mark F. on 29/12/2025