AmazingRibs.com is supported by our Pitmaster Club. Also, when you buy with links on our site we may earn a finder’s fee. Click to see how we test and review products.

ThermoPro TP-21 Remote Thermometer Review

Share on:
ThermoPro TP-21 Remote Thermometer Review
The ThermoPro TP-21 is a single-probe wireless remote thermometer with user-programmable temperature alarms and USDA-approved temperature settings. It also includes a timer function.
 
The thermometer comes with one probe that is 6″ (15cm) long. The probe should not be submerged while cleaning or exposed to temperatures above 572ºF (300ºC).
 
The transmitter has a single display that indicates the temperature to 0.1º in either Fahrenheit or Celsuis. There is no backlight on the transmitter. The battery compartment has a sealing ring to repel moisture, but the manufacturer warns against using it in the rain.
 
The receiver displays the temperature alarm setting as well as the probe’s temperature to 1º. Temperature can be displayed in either Fahrenheit or Celsius, independent of the transmitter’s setting. If the timer is being used, its value displays on the top line above the probe temperature. The probe has an alarm setting for an upper temperature limit. There is no lower limit setting. The display backlight will flash blue after the temperature has gone up by 10º. When the probe is within 15º of the set temperature, the backlight flashes green. When the temperature reaches the alarm setting, the backlight flashes red, and the audible alarm beeps.
 
Target temperatures can be selected from pre-programmed meat and doneness values or set to the user’s preference.
 
The timer operates in either an up-counter or down-counter mode. If the user sets a time value, the counter will count down to zero, displaying a flashing 00:00. If the timer is cleared to zero and started, it will count up to 23 hours and 59 minutes, but no alarm will sound.
 
If the receiver loses signal from the transmitter for over one minute, the receiver will alert the user by displaying dashes in lieu of the temperature reading, but there is no audible alarm. After 30 minutes of lost signal, the receiver will beep and turn itself off unless the timer is running. Unfortunately, there is no audible indication that the signal has been lost until 30 minutes have elapsed, a serious shortcoming that could result in a ruined meal.
 
The build quality of the electronics and the probes is above average. This thermometer is easy to use and provides the basic information that most cooks will want. The lack of a lower temperature alarm limit might restrict its utility for some users, though. The unit is covered by a one-year limited warranty that is extended to three years if you register the product online. Contact information, including an e-mail address, website and telephone number, are provided in the owner’s manual and on an enclosed card.
 
We’ll give this unit a Silver Medal for its build quality, performance, ease-of-use, and aesthetics.
  • Thermometer Function:
    Leave in Food, Leave in Cooker, Wireless Remote
  • Item Price:
    $ 39.99
  • Where to buy (buying from this supplier supports this website):
  • Probe:
    length: 6" (15cm), diameter: 0.158" (4mm), tip: 0.102" (2.5mm), cable: 40" (1m)
  • Battery Type:
    (4) AAA (included)
  • Battery Life:
    Not specified
  • Safe Operating Range:
    Not Specified
  • Min & Max Temp:
    15.8 to 572ºF (-9 to 300ºC)
  • Display Precision:
    0.1º/1º
  • Actual Temp at 32 Degrees:
    34.0
  • Actual Temp at 130 Degrees:
    131.5
  • Actual Temp at 225 Degrees:
    228.0
  • Actual Temp at 325 Degrees:
    331.2
  • Speed from 32 to 212 Degrees:
    n/a
  • Numbers Display Size:
    Temp: 0.4" (10mm)
  • Water Resistance Rating:
    Not rain-proof
  • Weight:
    Transmitter, receiver and probes: 7.25 oz. (205g)
  • C/F Switch:
    Built in CF switch
  • Backlight:
    Built in Backlight
  • Color Options:
    White
  • Thermometer Connection:
    RF
  • Included:
    Transmitter, receiver, one probe with a cable reel, batteries, instructions, warranty card
  • Alarms:
    Audible/Visible

Published On: 4/15/2018 Last Modified: 1/28/2021

  • Bill McGrath - Bill McGrath is AmazingRibs.com's Thermometer Maven. He has sophisticated equipment, an electrical engineering degree from Cornell University, and an MBA (almost) from UC Berkeley. Despite being mostly retired, he is still the person responsible for developing and updating all of ExxonMobil's training modules.

 

High quality websites are expensive to run. If you help us, we’ll pay you back bigtime with an ad-free experience and a lot of freebies!

Millions come to AmazingRibs.com every month for high quality tested recipes, tips on technique, science, mythbusting, product reviews, and inspiration. But it is expensive to run a website with more than 2,000 pages and we don’t have a big corporate partner to subsidize us.

Our most important source of sustenance is people who join our Pitmaster Club. But please don’t think of it as a donation. Members get MANY great benefits. We block all third-party ads, we give members free ebooks, magazines, interviews, webinars, more recipes, a monthly sweepstakes with prizes worth up to $2,000, discounts on products, and best of all a community of like-minded cooks free of flame wars. Click below to see all the benefits, take a free 30 day trial, and help keep this site alive.


Post comments and questions below

grouchy?

1) Please try the search box at the top of every page before you ask for help.

2) Try to post your question to the appropriate page.

3) Tell us everything we need to know to help such as the type of cooker and thermometer. Dial thermometers are often off by as much as 50°F so if you are not using a good digital thermometer we probably can’t help you with time and temp questions. Please read this article about thermometers.

4) If you are a member of the Pitmaster Club, your comments login is probably different.

5) Posts with links in them may not appear immediately.

Moderators

  Max

Click for comments...

Spotlight

These are not ads or paid placements. These are some of our favorite tools and toys.

These are products we have tested, won our top awards, and are highly recommend. Click here to read how we test, about our medals, and what they mean.

Use Our Links To Help Keep Us Alive

A big part of this site is our unbiased equipment and product reviews. We love playing with toys and we have no problem calling them the way we see them. Some companies pay a finder’s fee if a reader clicks a link on AmazingRibs.com and buys a product. It has zero impact on our reviews, zero impact on the price you pay, and the sites never tell us what you bought, but it has a major impact on our ability to keep this site alive! So before you buy, please click our links. Here’s a link that takes you to a page on Amazon that has some of our favorite tools and toys: https://tinyurl.com/amazingribs


Bring The Heat With Broil King Signet’s Dual Tube Burners

3 burner gas grill

The Broil King Signet 320 is a modestly priced, 3-burner gas grill that packs a lot of value and power under the hood. Broil King’s proprietary, dual-tube burners get hot fast and are able to achieve high, searing temps that rival most comparatively priced gas grills. The quality cast aluminum housing carries a Limited Lifetime Warranty.

Click here to read our complete review

 

Comprehensive Temperature Magnet With 80+ Important Temps

Amazingribs.com temperature magnet
Winner of the National BBQ Association’s product of the year award. This 8.5″ x 11″ magnet contains more that 80 benchmark temperatures for meats (both USDA recommended temps as well as the temps chefs recommend), fats and oils, sugars, sous vide, eggs, collagens, wood combustion, breads, and more. Although it is not certified as all-weather, we have tested it outdoors in Chicago weather and it has not delaminated in three years, but there is minor fading.

Click here to order.


Is This Superb Charcoal Grill A Kamado Killer?


The PK-360, with 360 square inches of cooking space, this rust free, cast aluminum charcoal grill is durable and easy to use. Four-way venting means it’s easy to set up for two zone cooking with more control than single vent Kamado grills. It is beautifully designed, completely portable, and much easier to set up for 2-zone cooking than any round kamado.

Click here to read our detailed review of the PK 360

Click here to order directly and get an exclusive AmazingRibs.com deal


Masterbuilt MPS 340/G ThermoTemp XL Propane Smoker


This is the first propane smoker with a thermostat, making this baby foolproof. Set ThermoTemp’s dial from 175° to 350°F and the thermostat inside will adjust the burner just like an indoor kitchen oven. All you need to do is add wood to the tray above the burner to start smokin’.

Click here to read our detailed review


Blackstone Rangetop Combo: Griddle And Deep Fryer In One


The flat top does the burgers and the fryer does the fries. Use the griddle for bacon, eggs, grilled cheese, and so much more. And why deep fry indoors when you can avoid the smell and mess by doing it outside!

Click here to read our detailed review and to order


Compact Powerful Sear Machine For Your Next Tailgater


Char-Broil’s Grill2Go x200 is a super-portable, fun little sizzler made of heavy, rust-proof cast aluminum. The lid snaps shut. Grab the handle and you’re off to the party! Char-Broil’s TRU-Infrared design produces searing heat while reducing fuel consumption. A 16 ounce LP gas canister is enough to keep you flipping burgers for hours.

Click here to read our detailed review and to order


The Pit Barrel Cooker May Be Too Easy


The PBC has a rabid cult following for good reason. It is absolutely positively without a doubt the best bargain on a smoker in the world. Period. This baby will cook circles around the cheap offset sideways barrel smokers because temperature control is so much easier.

Click here to read our detailed review and the raves from people who own them