ThermoWorks Thermapen ONE Review

The newest Thermapen, the ThermoWorks Thermapen One, adds to an extensive list of excellent products from this company. Long the standard by which other instant read thermometers are judged, the Thermapen has evolved again in its feature set, accuracy, and speed.

The new ThermoWorks Thermapen One features a one-second response time. For the mathematically inclined, that’s a time constant of 0.2 seconds, so the reading reaches 99.32 percent of its final value in one second. I’m going to have to take their word for it because I can’t get my stopwatch to measure that closely.

How to Operate the ThermoWorks Thermapen One

You can configure the thermometer to have a 1° or a 0.1° resolution; it comes from the factory set to 1°. The display has a smart backlight that comes on when the light is dim (or you cover up the sensor next to the display with your thumb.) The numbers on the display can be set to rotate in 90° or 180° increments, or not rotate at all, selectable via the setup menu in the battery compartment. The display numbers are slightly larger when read horizontally. Power is supplied by a single AAA battery and is claimed to last 2000 hours if the backlight isn’t used.

The Thermapen ONE comes in ten different colors so you can accessorize your apron. The warranty is a very generous five years.

The trend these days is to skimp on documentation, referring the user to a website. ThermoWorks takes a different approach: they give you TWO manuals, one “quick start guide” that gives you an overview and a second that goes into all the details. It’s worth reading! You also get a certificate of calibration so you know your thermometer is accurate.

You can find the contact info in the instruction manuals if you require help. You’ll find a telephone number, e-mail address, physical address, and website URL.

Our Review

The ThermoWorks Thermapen One has stolen a march on the instant read category with its ultra-fast response and excellent accuracy. I miss having a Hold button in some situations where I can’t read the display easily, but that’s my only gripe. Construction is robust and the unit is briefly submersible. Yeah, it’s pricey, but you only pay for it once. Top honors all around.