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-450 Dual Laser Infrared Temperature Gun Reviewed And Rated

Our Testing Practices

All of our reviews are done independently by our team of testers and are in no way influenced by advertising or other monetary compensation from manufacturers. Click here to learn more about our unbiased product review process.

Share on:
ThermoPro TP-450

The ThermoPro TP-450 is a narrow focus infrared measuring tool with a unique two-laser aiming system that can be used to measure the surface temperature of any object.

Squeezing the trigger turns on the detector and twin laser beams that indicate the area being measured. The spot-distance ratio is 16:1 which is quite a narrow window. This facilitates measuring the surface temperature of a small area. The two lasers indicate the 12 o’clock and the 6 o’clock positions on an imaginary circle that lies between them, making the area being measured easy to determine. Because of the locations of the lasers, there is no parallax error. As an added bonus, the two red dots were great for confusing my cat!

The resolution of the thermometer is 0.1°, and the claimed accuracy is 1.5 percent which is a bit optimistic, in my opinion. Because different surfaces emit different amounts of energy (black = high; shiny = low), the value of emissivity set in the tool is critical if high accuracy is desired. An emissivity value of 0.95 is the default setting and can be changed by the user. Because of this dependency, take the measurement with a grain of salt.

The display shows two values: the instantaneous reading at the top, and a minimum/maximum/average reading below. The user can cycle through the three values with the push of a button. The laser can be turned off if desired.

As for the build quality, it seems high, including a solid feel to the housing. The required batteries are AAA which are easily found. The documentation is detailed and well-written. The thermometer comes with a one-year limited warranty. The contact information includes telephone numbers and an e-mail address should technical support be needed.

This is one of the nicer IR thermometers I’ve tested, and the price point is attractive, earning it an easy Gold Medal.

Haven't found what you want?
Click the buttons below to search our complete database of reviews:

Product Information:

  • Thermometer Function:
    Infrared Gun
  • Item Price :
    *Price Subject To Change
  • Where to buy (buying from this supplier supports this website):
  • Made in USA:
  • Battery Type:
    2xAAA (supplied)
  • Min & Max Temp:
    -58 to 1022°F (-50 to 550°C)
  • Display Precision:
  • Actual Temp at 32 Degrees:
  • Speed from 32 to 212 Degrees:
  • Water Resistance Rating:
    Not Specified
  • Weight:
    6.3 oz. (178g)
  • C/F Switch:
    Built in CF switch
  • Backlight:
    Built in Backlight
  • Adjustable Options:
    Adjustable Emissivity
  • Auto shutoff:
    Has Auto Shutoff
  • Color Options:
  • Additional Features:
  • Included:
    Thermometer, batteries, instructions
  • Alarms:



Published On: 5/8/2022

  • Bill McGrath, Chief Thermometer Reviewer - Bill McGrath is'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 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


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.



Click to comment or ask a question...


These are not paid ads, they are a curated selection of products we love.

All of the products below have been tested and are highly recommended. Click here to read more about our review process.

Use Our Links To Help Keep Us Alive

Many merchants pay us a small referral fee when you click our “buy now” links. This has zero impact on the price you pay but helps support the site.