Today, we are reviewing the Thermopro TP620 instant-read thermometer. ThermoPro makes a range of quality thermometers, so I have high hopes for this one. Will I be left disappointed? Or will it join the ranks of my go-to grilling gadgets?
This review is a hands-on report on my use of the TP620. I bought this thermometer, unboxed and photographed it, did my standard ice water and boiling tests to check for accuracy, measured the speed at which it reads, tested every function, and used it during a handful of cooks to see how it performs in the real world.
So, if you are shopping for a digital instant-read thermometer, keep reading for a complete ripping apart of the ThermoPro TP620, including specs, features, and a hands-on performance review.
Is it any good? The answers are below.
Contents (Jump to Topic)
Ratings and Final Verdict
The ThermoPro TP620 sits perfectly as a mid-priced, high-quality thermometer for barbecue enthusiasts looking for speed and accuracy. It delivers fast, precise readings, passing our tests with flying colors, making it easy to achieve perfect grilling results every time.
The thermometer’s durable design and bright, easy-to-read screen add to its value. The built-in magnet and auto-rotating display are welcome features, and the automatic on/off when unfolding/folding away the probe adds convenience and helps extend battery life. A rechargeable battery would be a welcome upgrade, but this is a very minor gripe.
The waterproofing means it’s suitable for use in all weathers and makes it easy to keep clean and hygienic. You can simply wash it under the tap.
The TP620 sits in the middle price range of instant-read thermometers. There are cheaper units available, but they lack some of the features present. There are better models out there, but they cost more.
In summary, with its durability, feature set, ease of use, and waterproof design, this is a great thermometer at a great price.
Pros
- Capable, fast, and reliable.
- Automatically turns on and off when probe is unfolded/folded.
- Rotating screen for visibility in left or right orientations (ambidextrous.)
- Screen is large, bright, and easy-to-read.
- Waterproof housing makes it easy to clean.
- Sleep mode to preserve battery life (up to 3000 hours on a single AAA) with motion-sensitive wake-up.
- Built-in magnet for convenient storage.
Cons
- If the probe rotated 270 degrees instead of 180, it would be even better for left-handed people.
- A rechargeable battery would be nice.
Who Should Buy This Product
The ThermoPro TP620 is a medium-priced, fast, and accurate instant-read thermometer for those who value precision at a great price. It’s especially suited to individuals who frequently grill and BBQ so need something reliable and durable but do not want to spend more on the absolute best.
With its fast response time of 1–3 seconds and high accuracy within ±0.9 °F/0.5 °C, its performance is more than good enough for any cooking task.
On the flip side, the ThermoPro TP620 might not be the best investment for casual grillers or those on a tight budget. If your grilling is occasional, limited to a few times a year during summer months, or if you’re just starting out and not yet ready to spend a lot on only rarely used tools, there are more basic thermometers that can meet your needs without the added cost.
Also, if you want the very best and are willing to pay more for it, you want to look at the Thermapen One or the FireBoard Spark.
Fast and accurate, ambidextrous, backlit, instant-read meat thermometer, with motion-sensing screen orientation.
Our Ratings Explained
Based on my hands-on use of the TP620 and what I know of the many other instant-read thermometers I own, have tested, and can compare against, here are the rating scores I have given and an explanation of points given and points deducted.
Accuracy
The ThermoPro TP620 boasts an impressive accuracy of ±0.9°F (±0.5°C), which is on par with the best in the market. This level of precision ensures that if you’re aiming for a perfectly medium-rare steak, you can trust the TP620 to give you a true reading.
This accuracy is more than good enough for any and all BBQ needs. The only thing keeping it from a perfect score is the ChefsTemp X10 and Thermapen One have a slightly higher level of accuracy.
Score: 9/10.
Response Time
With a response time of 1-3 seconds, the TP620 is among the fastest thermometers available. This quick read time minimizes the door open time on your grill or smoker, preserving heat and smoke, and reduces the time your hand is over the heat.
It’s hard to find fault with such speed, but in a world where every second counts, the upper range of 3 seconds gives room for slight improvement. Plus, a handful of competing products have slightly better response times, so I have to deduct points here.
Score: 8.5/10.
Ease of Use
The TP620 is extremely easy to use, featuring an intuitive design that automatically turns on when the probe is extended and off when retracted. Its waterproof nature makes it easy to clean, and the auto-rotating display ensures readability regardless of the hand used.
While its design and features are user-friendly, there are thermometers with rotating displays that work in all four orientations and have probes that fold out to 270 degrees, preventing the TP620 from earning higher marks.
Score: 8.5/10.
Build Quality and Durability
Constructed with a waterproof rating of IP65 and a robust, anti-slip grip, the TP620 is built to withstand the rigors of frequent kitchen or outdoor use. Its durability is evident in its design, intended to handle the accidental drops and spills that come with cooking.
However, the absence of a rubber seal where the top and bottom pieces of the housing connect, as noted in some reviews, suggests a potential vulnerability to prolonged water exposure.
Score: 8.5/10.
Battery Life
The TP620’s battery life is commendable, with up to 3000 hours of use on a single AAA battery, complemented by an intelligent auto-sleep function that conserves power when not in use. While this offers significant longevity, the reliance on disposable batteries instead of a rechargeable option slightly detracts from its score, considering environmental and convenience factors.
Score: 9/10.
Additional Features
This thermometer is packed with additional features like a waterproof design, motion-sensing sleep and wake mode, and a backlit, auto-rotating display for easy reading in any conditions. It also has a handy little temperature doneness chart on the rear, which is handy.
While these features give it a high score for usability and functionality, the lack of connectivity options such as Bluetooth or Wi-Fi, which are available in some competitors (the Fireboard Spark), slightly limits its score here.
Score: 9/10.
General Overview
The ThermoPro TP620 is a digital instant-read thermometer designed for fast, accurate measurement of food temperature.
Unlike your more typical leave-in probe smoker thermometers, it’s meant for quick, on-the-fly readings. It’s useful for food that doesn’t lend itself to being wired up to a base unit, for moving quickly between multiple food items, and for verifying what your leave-in thermometer is telling you.
The TP620 is a battery-operated unit with a digital display and a thermocouple sensor for highly precise readings in just seconds.
ThermoPro previously marketed the TP620 as the TP19X. I don’t know why they did this, but I suspect it was more clear to differentiate it from the TP19.
Manufacturer Specs
- Response Time: 2-3 seconds
- Temperature Accuracy: ±0.9°F/0.5°C
- Temperature Range: -58°F~572°F (-50°C~300°C)
- Temperature Units: °F or °C
- 90s Auto-Sleep and Motion Wake
- 180° Auto-Rotating Display
- Temperature Probe Length: 4.25″ food grade stainless steel probe
Why Trust Us
Owning and using the ThermoPro TP620 has allowed me to properly assess its performance in real-world grilling scenarios, as well as compare it like for like to the many other instant-read thermometers I own and have tested.
I have been BBQing since 2005 and testing, reviewing, and writing about BBQ tools and equipment on this site since 2017, so I have a wealth of experience to draw upon, too.
I also did a ton of research for this review, reading other experts’ reviews, as well as feedback from customers on social media and in forums, to make sure I get a well-rounded view of the product from other’s perspectives too.
Finally, I pride myself on being independent, delivering unbiased, transparent reviews without any ties or forced loyalty to any particular brands or manufacturers, and maintaining the integrity and trustworthiness of my recommendations.
Fast and accurate, ambidextrous, backlit, instant-read meat thermometer, with motion-sensing screen orientation.
TP620 Review and Test Results
From here, we take a detailed look at every feature of the TP620 and put its functionality to the test.
Unboxing and Assembly
Crack open the cardboard, and you’ll find 1 AAA battery, a small screwdriver to open the battery compartment, your owner’s manual, and the TP620 thermometer.
Not a lot, but precisely all you need.
Design and Build Quality
The ThermoPro TP620 isn’t exactly palm-shaped; unlike the TP19, from which the TP620 is derived, it’s decidedly boxy. That’s ok, though — it’s not like you’re holding on to it for hours at a time.
It’s chunky enough to feel substantial, but even small hands will be able to get a grip on it. And honestly it feels natural to hold, with the rubberized grip on the top feeling nicely…well, grippy.
It looks pretty smart in the red and black finish, with the ThermoPro logo subtly displayed; it’s a welcome departure from huge, often ugly, logos found splashed across the front of many BBQ accessories.
Speaking of splashing, the waterproof housing is certainly welcome. Some ThermoPro thermometers, including the TP19, feature a rubber seal where the top and bottom pieces of the housing connect. This is absent on the TP620. That doesn’t necessarily mean it’s not as good at keeping out water, but it’s something to keep an eye on as time goes by.
There’s a large hook hole at the back of the unit that’s handy for hanging up your TP620 when it’s not in use.
Even more useful, though, is the built-in magnet in the handle. In a world of stainless steel, it makes sense to slap this up wherever it’s most convenient. If you happen to have stainless side shelves on your grill, you’ll like being able to put thermometer down and not worry about knocking it to the ground.
And, even in a post-pandemic world, the antimicrobial coating on the body of the TP620 will be very welcome. I can’t stress enough how important it is to handle raw meat safely and how easy it is to slip up. Having one less surface to worry about is fantastic. (Having said that, always thoroughly clean your BBQ tools after each use!)
Features and Functionality
The scientists and engineers at ThermoPro list a temperature range of -58 °F to ~572 °F (-50 °C to ~300 °C). Accuracy is reportedly ±0.9 °F/0.5 °C.
We’re more concerned with accuracy than the range, of course, and this stat is on par with most of the better instant-read thermometers on the market, as you will soon see in my iced water and boiling water tests below.
It comes from the factory pre-calibrated, but if you find it’s off a bit, there is a recalibration button inside the battery compartment.
Speed is also essential for this type of thermometer to be useful. Response time is given as 1–3 seconds; again, this figure is in line with the competition. Further down, I’ll test the accuracy and speed myself and let you know how my results compare to Thermapen’s.
Although I wouldn’t describe the TP620 as ergonomic, it does feature a slip-resistant grip, which is excellent for use with greasy hands.
Once you’ve got a handle on it, flip out the 4.5” stainless steel probe, and thermometer automatically powers on.
You’ll know it’s on because the 2-inch LCD screen lights up. The display features .75” characters, and they’re very bright. There’s no squinting required, no matter the time of day.
You left-handers will appreciate the auto-rotating display; flip thermometer over, and the display flips, too, so it’s always right-side up, no matter the orientation.
Folding the probe back into the closed position shuts the unit off automatically. There’s also a power-saving feature should you forget to power down; after 90 seconds of inactivity, the ThermoPro TP620 goes to sleep. And, like a human baby, it wakes up again the second you move it.
There’s a single button on the display side of thermometer labeled LOCK.
Pressing this button locks the display at the current temperature for 5 seconds. There’s a very small button (too small to press accidentally) to switch between Fahrenheit and Celsius on the back.
Another important — and most welcome — feature is the waterproof housing. It’s rated at IP65, which means you can rinse it off under a tap, and it will survive getting caught in the rain. You cannot, however, completely submerge the TP620, nor should it go in the dishwasher.
Finally, when not in use, the probe tip is held tightly closed by a little plastic clip, with the sharp probe tip safely covered.
This is handy as it ensures no accidents when fishing around for thermometer if kept in a drawer. The sharp tip is safely housed away.
Ease of Use
You couldn’t ask for a thermometer to be any easier to use. There is no ON/OFF switch, you simply open the probe, and it turns on automatically. It turns itself off when you close the probe.
The probe is nice and long, with a thin tip that is easy to insert into meat for taking temperatures. The probe has 180 degrees of rotation.
Taking temperatures is fast, and the display provides large, highly visible readings. Clean-up is a breeze, too, thanks to the IP65 waterproof housing.
Putting it to the Test
In the first instance, I used the TP620 to take the temperature of a lamb shoulder I was smoking, to pull as part of a Moroccan style sharing platter.
I have a collection of different instant-read thermometers, and I like to compare any new thermometers to the ones I know are highly accurate, the Thermapen 3 and Thermapen One, specifically.
I also like to do the iced water and boiling water tests to see what a thermometer reads and how accurate it is. I can also take note of its speed during these tests. The results are below.
Speed of Reading
I can confirm ThermoPro’s claims of the readings taking just 1 to 3 seconds. It went from a cool room temp, to a 198 °F reading of my lamb leg in less than 2 seconds. And then a reading of 32 °F for iced water again in just a couple of seconds.
It is very quick to take and settle on a reading of the temperature, which is important when taking measurements of quick grilling items like steaks or chops.
Ice Water Test
For the iced water test, I filled a glass with ice and then some water to fill the gaps between the ice. I then put this into the freezer until the water is almost but not completely frozen. Just liquid enough to insert the probe.
Iced water is 32 degrees Fahrenheit. As you can see, the TP620 measured this spot on, so it is accurate as this end of the temperature scale.
Boiling Water Test
I simply boil a pan of water on the hob until it is slowly rolling for the boiling water test.
I place a lid on the pan and put thermometer probe down into the water under the lid, taking care not to touch the bottom of the pan, which can be hotter due to the flames underneath.
The temperature of boiling water is 212 degrees Fahrenheit at sea level but changes depending on your height above sea level, lowering as you get higher.
I live at approximately 150 feet above sea level, so the effect is almost non-existent and can be ignored.
As you can see in the photo above, the Thermopro TP620 measured the boiling water at precisely 212 degrees Fahrenheit, so it is also accurate at this end of the scale.
Overall, this thermometer is fast and accurate. I’m impressed with it and very happy with its performance.
What Others Say
At the time of writing, the following feedback was left by customers at popular online sellers of this product:
- Buythermopro.com 4.87/5 from 90 reviews.
- Lowes.com 4.7/5 from 63 reviews
The ThermoPro TP-620 (also known as the TP-19X) review at AmazingRibs gives an overall positive sentiment for its comprehensive features and performance as an instant-read food thermometer but only gets a silver award (on a scale of platinum, gold, silver, bronze, not recommended.)
They praise its accuracy and speed, although they do say it’s not the best in class. Its thermocouple sensor, faster than many others, and user-friendly features like a rotating display readable in any light, moisture resistance, auto-shutoff, and easy Fahrenheit/Celsius conversion come highly regarded.
Despite not topping speed or accuracy tests, it’s deemed more than adequate for typical cooking tasks, with a durable build and slightly higher cost justified by its quality and features.
The three-year warranty and detailed instructions, with contact info, add value. The review positively notes its practicality and reliability, ending with a sign-off of ‘What’s not to like?’
Warranty and Support
ThermoPro provides a 1-year warranty on the TP620, and that’s pretty standard for small gadgets like this. However, if you register your product immediately after purchase, the warranty coverage extends to 3 years. Got to like that!
What’s really great is, if you meet the requirements, ThermoPro will send out a replacement unit — you don’t even need to send the defective unit back. Now that’s a company that has faith in its products.
Should you change your mind about your purchase, you can return it for a full refund within 30 days.
At the time of writing, the TP620 was pretty much the only product on the ThermoPro website without a “setup” video. Having watched a couple, though, they’re little more than ads for the devices. Just read the manual, and you’ll be fine. (Which you can download from the site should you lose or damage yours.)
There’s an FAQ section on the site, but it’s all about shipping and returns rather than the products. Still, this is not a complicated device, so you’re unlikely to require major troubleshooting assistance. However, there’s a Tips section that could prove useful if you’re stuck.
You can call ThermoPro during the week or even send a text (North America only) for direct assistance.
Finally, there’s a contact form you can fill out for help, including a space to upload photos of the problem.
Summary of What We Learned
Before I get to my ultimate thoughts on whether you should buy the ThermoPro TP620 or not, here’s a summary of the pros and cons as I see them.
What We Like
The ThermoPro TP620 is notable for its speed and accuracy, delivering readings in just 1 to 3 seconds, ensuring you’re not left waiting around and can quickly move on to the next task. This feature is particularly beneficial when grilling items that require precise timing, like steaks or chops, to achieve the perfect doneness.
The thermometer’s accuracy is spot-on, confirmed through tests in both iced water and boiling water, where it matched expected temperatures perfectly.
Its ease of use is another big plus; it turns on automatically when the probe is unfolded and turns off when folded back, simplifying the process and saving battery life.
The waterproof housing is a practical feature, making it easy to clean under a tap and ensuring it can withstand getting caught in the rain.
Additionally, the large, bright, and easy-to-read screen, along with the rotating display for left or right-hand use, enhances its user-friendliness.
The built-in magnet for convenient storage and the antimicrobial coating for safer food handling further add to its appeal.
What Could be Improved
While the ThermoPro TP620 scores high on many fronts, there are areas where enhancements could make it even more user-friendly, especially for left-handed users. The probe rotates 180 degrees, which is helpful, but extending this rotation to 270 degrees would offer better flexibility and ease of use for those using their left hand.
Another aspect that could be updated is the power source. In an era where rechargeable batteries are becoming the norm for gadgets, incorporating a built-in rechargeable battery would be a significant upgrade. It would not only be more convenient but also more environmentally friendly, reducing the need for disposable batteries.
This change could potentially make the thermometer even more appealing to a broader audience, adding to convenience and sustainability.
Will You get Value for Money?
The ThermoPro TP620 is in the middle of the pricing scale for this type of thermometer. But, you’ve always got to look at value rather than cost; what do I get for my money?
Well, for my money, I got a superior quality thermometer that’s fast, accurate, and very easy-to-use. For the casual, occasional griller, you might not see the value, and there are plenty of lower-cost thermometers that can do the job, though perhaps not as adeptly. If grilling is a serious hobby, however, you’ll consider this money well spent.
Do We Recommend this Product?
I’ve given my ThermoPro TP620 a thorough inspection, put it through its paces, and reviewed the results.
I own or have owned many instant-read thermometers, and I consider this one well worth owning. So that’s a “yes.” I do recommend the ThermoPro TP620 for anyone who is or is looking to be more than a casual barbecuer.
Fast and accurate, ambidextrous, backlit, instant-read meat thermometer, with motion-sensing screen orientation.
Alternative Products
If the TP620 doesn’t quite tick all the boxes for you, here are two alternatives that might be right for you.
ThermoWorks Thermapen One
The Thermoworks Thermapen One stands out as a superior alternative for those seeking the ultimate in precision and speed in a digital instant-read thermometer. It delivers accurate temperature readings in just one second, a significant improvement over the ThermoPro TP620’s 1-3 second response time. This rapid performance ensures minimal heat loss during grilling and reduces the time your hand is exposed to high temperatures, enhancing both safety and cooking efficiency.
Accuracy is another area where the Thermapen One excels, boasting an accuracy of ±0.5 °F, which is critical for achieving the perfect doneness of meats without the guesswork. This level of precision ensures that when aiming for a medium-rare steak you have the most accurate temperature reading possible.
The Thermapen One also features a 360-degree rotating display, making it effortlessly readable from any angle. This is particularly useful for quick and easy temperature checks without the need to maneuver the thermometer into a specific position, and also for left-handed users.
Additionally, its IP67 waterproof rating provides peace of mind for outdoor cooking sessions, and is the best in class compared to other products on the market.
Designed with both professional chefs and home cooks in mind, the Thermapen One’s robust build quality and intuitive design, including a motion-sensing sleep and wake mode, make it a convenient tool for any grilling enthusiast. Its ergonomic design and easy-to-read display further contribute to its user-friendly experience, setting it apart from the competition.
In terms of cost, the Thermapen One is positioned at a higher price point compared to the ThermoPro TP620. However, the investment is justified by its superior speed, accuracy, and build quality.
Click here to learn more in our detailed write up of the Thermapen One test results and review.
Lavatools Javelin Pro Duo
The Lavatools Javelin Pro Duo stands also boasts a quick response time and high accuracy. Its ambidextrous design caters to both right and left-handed users, making it a versatile tool in any kitchen or outdoor cooking setup.
With a read time of 2 to 3 seconds, it’s not the absolute fastest on the market. It is slower than the TP620, in fact, but is sufficiently quick for most cooking tasks, ensuring minimal heat loss and more precise cooking.
The backlit display enhances visibility in all lighting conditions, and the auto-rotating display feature ensures ease of reading regardless of how the thermometer is held.
This thermometer’s splash-proof design adds a layer of durability, although it’s not fully waterproof. The build quality does not feel as robust as the TP620, but it offers a solid grip and a user-friendly experience.
The Lavatools Javelin Pro Duo also boasts an impressive battery life of up to 4,000 hours, reducing the frequency of battery replacements. Its auto shut-off and motion wake features further prolong battery life, making it an efficient tool for regular use.
In comparison, the ThermoPro TP620 is slightly better than the Lavatools Javelin Pro Duo, both in build quality and performance. However, when considering the average price of both products, the Lavatools Javelin Pro Duo offers a compelling mix of functionality, durability, and convenience at a price point that is lower than the TP620.
So, if you are looking for a capable thermometer at a lower price point, consider Lavatool’s offering.
Click here for an in-depth hands on review of the Lavatools Javelin pro Duo.
Final Thoughts
Shopping for a digital instant-read thermometer isn’t an easy job. There are options beyond counting, and it isn’t easy to figure out the best choice for you.
Buying a ThermoPro is never a bad decision (I’ve done it more than once!), and the TP620, in particular, comes loaded with convenient and practical features and superior performance.
If, after reading this TP620 review, you’re not convinced this is the instant-read thermometer for you, don’t give up! Have a look at our other thermometer reviews; I have no doubt the right one for your specific needs is in there.
Thanks for reading, and don’t forget to follow us on Facebook, Instagram, Twitter, and Pinterest (or just pick your favorites) to keep up with the latest articles, reviews, and tested recipes.
Cheers!
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