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  • Super-Fast® Pocket Thermometer with Cal Adjust (RT301WA)

Super-Fast® Pocket Thermometer with Cal Adjust (RT301WA)

$19.00 $29.00


2-up: $16.00 ea.


  • NEW! Accuracy to ±0.9°F (±0.5°C)
  • 5-6 seconds
  • Adjustable calibration
  • IP65 water resistant
  • On/Off switch
  • Auto-off after 1 hour
  • °C/°F switchable
  • -40°F to 302°F Range
  • NSF Component Certified

The RT301WA digital pocket thermometer is top rated by a leading Cook's Magazine. The Super-Fast ThermoWorks digital pocket thermometer reads temperatures in just 5 seconds. Big digits are easy to read, plus it fits in a shirt, apron or chef-coat. This digital thermometer is in use at thousands of restaurants, food plants, labs and by health inspectors world-wide. It's the perfect digital thermometer, and the affordable choice for home or commercial use.

  • Improved Accuracy

    The RT301WA is a super accurate digital pocket thermometer that's been upgraded to ±0.9°F up to 212°F. This accuracy is only found in professional thermometers. The RT301WA has been thoroughly tested against NIST-traceable standards.


    The RT301WA is faster than any other thermometers in this price range! The reduced tip is only 1/16" diameter and complies with USDA meat thermometer requirements. The thermometer is fully speed-tested in the ThermoWorks Standards Lab to ensure it reaches within 1°F of the final temperature in only 5 to 6 seconds (at any temperature in the range).

    Longer Battery Life_

    The RT301WA uses a reliable CR2032 battery with circuit improvements to reliably allow 5,000 hours of continuous use between battery changes. The thermometer's auto-off shuts the unit down if you leave it on for more than an hour.

    Adjustable Calibration_

    Under the sealed SS screw in the front panel is an adjustment screw that allows you to re-zero the thermometer in an ice bath, and remove minor errors if ever needed. However, thermometer readings should remain within the ±0.9°F spec without adjustment.

    Tough Commercial Design

    The RT301WA digital pocket thermometer has been designed with minimal food and grime traps. Rubberized button panels are sealed. Big display is protected by a molded-in, hard plastic window. No welded or braised joints on the probe that would shelter microbes or create likely breakage points. Designed to survive short term, shallow immersion - you can wash the thermometer under the tap or use it with wet hands. Rated to IP65. Fully NSF approved for use in commercial food applications.


    The RT301WA comes with a two-year coverage on material and workmanship including any failure in the thermometer circuit. Includes online, email and phone access to the ThermoWorks technical service group.

  • Range-40 to 302°F (-40 to 150°C)
    Accuracy±0.9°F (±0.5°C ) between 14 to 212°F (-10 to 100°C), otherwise ±2.7°F (±1.5°C)
    ResponseApprox. 6 seconds from ambient to 32°F (0°C)
    Auto-OffAfter 1 hour
    Display 0.47 H x 1.02 W inches (26 W x 12 H mm)
    Water Resistance IP65
    Digit Size 0.39 H x 0.16 W inches (10 H x 4 W mm)
    Probe4.8 L x 0.1 dia. inches; reduces to 0.67 L x 0.06 (1/16") dia. inches

    (125 L x 2.5 dia. mm; reduces to 17 L x 1.5 dia. mm)
    Min. ImmersionApprox. 0.25 inch (6.4 mm)
    Battery*3 volt, type CR2032 or equivalent x 1 piece (included)
    Battery Life5,000 hours continous operation
    Dimensions1.3 H x 1.9 W x 1.1 D inches (35 H x 49 W 28 D mm)
    Environmental Range32 to 122°F (0 to 50°C)

    *Units manufactured prior to July 2012 use an LR44 battery. Units manufactured after July 2012 use the CR2032. If you are not sure, remove your battery to check which type you should use in your thermometer.

  • Large Digit Display

    Easy to read display, C/F Switchable, On/Off button with 1 hour auto-off saves battery life. Normally does not require adjustment, but can be re-calibrated via front panel adjustment screw if needed.


    The fastest pocket thermometer we've tested. Gets to final temperature in 5-6 seconds. Special reduced-tip design. Highly rated among top cooking magazines.

    NSF Approved

    The RT301WA has been tested by NSF and qualifies to bear the mark


Ratings & Reviews

4.3 / 5.0
7 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Stars
My favorite thermometer!
While I recently purchased the MK4 Thermopen for the speed needed for caramels, this Super Fast pocket thermometer is so easy to grab and use that it will stay as my favorite for meats.
December 27, 2016
Fast, accurate and cheap
The title says it well. The only weakness is that the probe is good only up to 300F degrees. IMHO, because of the price, it is a must have in any kitchen and should be used for everything from meat to fish to eggs to cakes ( always target 207 and the cake will be moist yet done). And to boot, it can be calibrated, a feature that sets it apart from numerous more expensive yet inferior products.
December 30, 2016
Versatile Thermometer
The stick-in, leave-in thermometers are great for roasts and whole turkeys, but what about steaks, burgers and individual salmon portions? This thermometer can do roasts and turkeys, you'll just need to reinsert it each time you want to take a reading. When grilling individual meat servings, they are not all going to be done at the same time. Some areas of the grill are hotter than others and some people like their meat more done than others. That's where this thermometer excels. It allows you to cook each piece of meat to the requested doneness. It's a fast reading thermometer and that's important when grilling 8 or more pieces of meat. I've been using this model for more than 5 years and I love it. I've bought more than a dozen of these because I give them as gifts. It's a great quality thermometer and I'm still on the original battery after 5 years (and I use mine a lot). I once had a question and called ThermoWorks. Their technical support was fabulous!
May 2, 2017
Great Product
Works great! Fast and easy to use. Highly recommend.
August 30, 2017

2 months ago
RT301WA Review
I use the RT301WA for my home beer brewing. This pocket thermometer water resistant, accurate and fast responding. Accuracy is needed for various phases of beer brewing and the RT301WA works perfectly for this application.
June 22, 2017

5 months ago
Nice, wish it was longer
This does take 5-6 seconds to stabilize a reading, which is OK for my use.

However as a brewer, I am having to stick my hand just above the surface of a hot liquid. Would it possible to make this with an 8" probe?
August 22, 2017

3 months ago
Battery dies quickly when off - too much quiescent current draw
This thing is worthless. After a few weeks the battery is dead from standby current in the off position.

Make sure you buy batteries in bulk and be prepared to replace them frequently even if you seldom use the devise.
April 27, 2017
Response from ThermoWorks
Hi Dave,

The Super-Fast® Pocket Thermometer’s battery should last through 5,000 hours of continuous operation. If your RT301A’s battery has to be replaced after a few weeks, something has gone wrong with your particular unit and is a candidate for a warranty replacement.

We’d like to help you with it. Our Tech Support team is going to get hold of you right away. If you’d rather, you may contact them by emailing techsupport@gmail.com or by calling 1-800-393-6434.
April 27, 2017
Rozanne PStaff