07 Best Infrared Thermometer Reviews

Infrared Thermometer

Infrared Thermometer

To determine which infrared thermometer was the most accurate in measuring temperatures between below zero and 600 °F, we tested seven models that came highly recommended. The ennoLogic – eT650D, which is packed with capabilities for both the home cook and the HVAC worker and was the most accurate in our tests, has been chosen as the finest infrared thermometer. The Etekcity – LaserGrip 630, which has the same functionality and is equally accurate, is our budget selection. However, its larger size and blue-backlit LCD screen place certain restrictions on it.

How We Selected Infrared Thermometers To Test

After learning how infrared (IR) thermometers function, we investigated the applications that people actually use them for. It became clear from Amazon reviews that fewer individuals than we had anticipated used IR thermometers in the kitchen. The most often mentioned applications included checking the temperature of a pizza stone, keeping an eye on sugar that was simmering to make candy, and determining the ideal temperature of oil for deep-frying. Unexpectedly many people note how great their IR thermometer’s pinpoint lasers were for amusing a bored cat.

More pertinent information was discovered from restaurant staff who use IR thermometers to check the temperature of food on a buffet line, HVAC technicians who examine the ventilation and heating systems, and electricians who look for hot spots, overloaded circuit breakers, and other electrical problems. The IR thermometers with the greatest ratings for accuracy, durability, and user-friendliness were chosen after we reviewed their reviews on Amazon, reliable review websites, and Reddit discussions.

How Does An Infrared Thermometer Work?

Infrared Thermometer

All organic and inorganic objects release heat-related infrared energy from their surfaces when they are heated. Infrared energy is a component of the electromagnetic light spectrum. Emissivity, which is measured on a scale from 0.0 to 1.0, is the rate at which this energy is emitted out and absorbed into a material. The majority of IR thermometers have their emissivity pre-set at.95 or.97, which accounts for the amounts of components generated from plants or animals. (Materials with reflecting surfaces, such as polished aluminum, have emissivities that are substantially lower.)

A lens on an IR thermometer, also called a pyrometer, gathers infrared energy from an object and directs it into a thermopile detector. In order to display the temperature on the thermometer’s LCD screen, the thermopile turns the energy into electricity. Even though it sounds complicated, this process happens in milliseconds.

An IR thermometer is non-contact and can only monitor temperatures outside the body, unlike a probe thermometer. It is made to be used remotely, such as to check the temperature in a pizza oven or locate a hot spot on a grill. Restaurants, HVAC installations, home inspections, and auto repair shops frequently employ IR thermometers.

However, since the oven door must be kept shut, using an IR thermometer to determine whether your oven is calibrated is impossible. Use our top pick from our evaluation of the best oven thermometer to check the temperature in your oven.

How We Tested Infrared Thermometer 

Iced water

The majority of manufacturers advise performing a straightforward test by adding water and broken ice to a glass to determine an IR thermometer’s accuracy. The ice is then mixed with the water until it starts to melt. The water should be cooled to 32 °F before the IR thermometer is pointed into the glass’s center. The ennoLogic eT650D and the Etekcity LaserGrip 630, our two top options, consistently reached 31.9 or 32 °F.

Pizza stone

A pizza stone was warmed to 550 °F in the oven, then its temperature was recorded. The only thermometer that matched our calibrated oven thermometer was the Klein Tools – 1R5.

Refrigerator and freezer

Our freezer and refrigerator were both set to 0 °F and 36 °F, respectively. The identical non-reflective area in the middle of the freezer and refrigerator was used for multiple measurements. All of the thermometers gave accurate readings for the refrigerator temperature, however the readings for the freezer varied.


We measured the four corners of an outdoor gas grill that had been heated to 550 °F. We used our top-rated probe thermometer to measure the surface temperature of the grill after each measurement and then we closed the cover and let it warm. The soup’s temperature during these experiments varied from 181-204 °F. Once more, the ennoLogic and Etekcity – LaserGrip 630 provided exact readings.

Important Features To Consider

Accuracy: Because IR thermometers only measure surface temperatures, a variety of variables, like ambient temperature, dust, steam, smoke, or frost, might impact their accuracy. Every thermometer we examined exhibited a variance in accuracy of plus or minus 3.5 to 4.0 °F, or 2% of the reading.

There was also two- to three-degree fluctuation in the readings of the same IR thermometer during our tests. This discrepancy was particularly obvious when we measured the temperature of a freezer that fluctuated between three and eight degrees. With repeated testing, the ennoLogic – eT650D and the Etekcity – LaserGrip 630 emerged as the two thermometers that were the most consistently accurate.

Distance-to-spot ratio:An IR thermometer measures the diameter of a circle of surface area in relation to its distance. The majority of more recent IR thermometer types have a distance-to-spot ratio of 12:1, which means they gauge the temperature of a circle with a diameter of 1 inch from a distance of 12 inches. The spot also grows for every additional 12 inches away from the target; for instance, at 24 inches, the diameter rises to 2 inches, and at 36 inches, it will be 3 inches.

The IR thermometer, however, captures a wider range of temperatures recorded surrounding the point and provides an average measurement of those temperatures the further away it is. As a result, the usual rule is that in order to take an accurate measurement, you should be as close to the item as feasible.

Fixed vs. adjustable emissivity: Three of the seven IR thermometers we evaluated had fixed emissivities of.95 or.97, making them appropriate for use in kitchens to gauge the temperatures of food, liquids, and some non-reflective inorganic materials. Instead, search for an IR thermometer with a mode for calibrating the emissivity level if you wish to measure a wider variety of materials.

Dual-laser technology:A laser on an IR thermometer helps you focus on the area you want to measure; in our experiments, IR thermometers with two lasers were more accurate. Finding the precise location we intended to measure with the single-laser thermometers proved to be more challenging. However, the spot between the two pinpricks of light that we measured was precisely visible on the dual-laser thermometers.

Readable LCD screen:You might assume that an LCD panel that is simple to read would be standard, but it isn’t. The thermometers with the simplest screens and black numerals at a glance were the Klein Tools – IR5, Ultra Performance, and ennoLogic models. The Mastercool’s screen was multicolored and difficult to read. The two thermometers from Etekcity and Nubee that we examined featured blue screens with black numerals, making it difficult to discern their readings at times.

1.EnnoLogic – eT650D

Infrared Thermometer

As the infrared thermometer that was consistently the most accurate, the ennoLogic – eT650D is our top pick. It offers 10:1 distance-to-spot ratio dual laser technology. One of the widest temperature ranges of the thermometers we evaluated has a range of -58 °F to 1202 °F. All of the tests were flawlessly completed by the ennoLogic, save a slight change in the freezer temperature reading.

Any angle could easily see its highly lit LCD screen, which had a white background and black digits. The ennoLogic offers a number of modes for monitoring high, low, and average temperatures as well as for calibrating different emissivity-varying surfaces. Both testers’ hands felt at ease with the ergonomic shape of the ennoLogic, and their forefingers naturally rested on the thermometer’s trigger. The ennoLogic is the most costly IR thermometer we evaluated, but it’s also your best option if you want a reliable instrument.

+ Pros

  • Accurate in every test we ran
  • Various methods of measurement
  • Adaptive design

– Cons

  • More costly than other options we tested

2.Etekcity – Lasergrip 630

Infrared Thermometer

The Etekcity – Lasergrip 630 is a wonderful substitute because it costs half as much. It has the same characteristics as the ennoLogic and two laser pointers as well. This Etekcity model can monitor temperatures between -58 °F and 1076 °F and has a 16:1 distance-to-spot ratio. In our tests, it was just as accurate as the ennoLogic, however it fluctuated more when determining the freezer temperature.

However, two characteristics prevented this great IR thermometer from being our top pick. It was top-heavy and difficult to maneuver because its head was a third bigger than the heads of all the thermometers we tested. Additionally, we had trouble reading the LCD screen’s black numerals on a blue background.

+ Pros

  • 16:1 ratio of distance to spot
  • Generally accurate in our tests
  • Affordably priced

– Cons

  • Blue LCD screens are challenging to read
  • A little heavy to move

3.Ultra Performance – 39102

Best Infrared Thermometer

One of the top-rated IR thermometers at Home Depot is the Ultra Performance – 39102. The Ultra Performance thermometer is the smallest one we evaluated, and although having finger grips indentations in the handle, it was too small for our testers’ hands. Nevertheless, it provided us with exact measurements for everything, even the freezer, giving us nearly identical values.

The Ultra Performance offers a 12:1 distance-to-spot ratio, a single laser, and a temperature range of -58 to 716 degrees Fahrenheit. You are forced to use it as-is because there is just one modifiable feature—the conversion between Fahrenheit and Celsius. It is useless for measuring reflecting surfaces because of its 95 emissivity level calibration.

4.Klein Tools – 1R5

Best Infrared Thermometer

The Klein Tools – 1R5 is the heaviest IR thermometer we examined, weighing in at 10 ounces thanks to its sturdy construction and 2-meter (6.6 feet) drop protection rating. The 1R5, which is intended for HVAC specialists, feels substantial in your hands. It contains all the features you require, two lasers, a distance-to-spot ratio of 12:1, and a temperature range of -22°F to 752°F. We had to strain our eyes a little bit to see the 1R5’s huge but dimly lighted LCD screen.

We frequently tested the 1R5 since it provided contradictory readings: it was correct when measuring soup, icy water, and refrigerators, but outrageously inaccurate when measuring temperature of a grill, pizza stone, and freezer.

5.Etekcity – Lasergrip 749

Best Infrared Thermometer

One of Etekcity’s less priced models is the Lasergrip 749. It shares the same features and restrictions as the Ultra Performance. Although it seemed to take longer to take a reading and fluctuated high and low before settling on a temperature, it was accurate in every test. This model includes a blue LCD screen that is dimly lighted and challenging to read, similar to the Etekcity – Lasergrip 630.

6.Mastercool – 52224-A

Best Infrared Thermometer

Only the Mastercool – 52224-A thermometer we tested came with a hard-plastic carrying cover, which, while attractive, is unusable and obviously designed for those who only seldom use an IR thermometer. Since a built-in meat thermometer is provided, it also appears to be more intended for kitchen use.

The Mastercool is entertaining but gimmicky, with a 12:1 distance-to-spot ratio, a temperature range of -58 °F-932 °F, and a single laser that emits a bullseye. Its brilliantly illuminated, disorientingly multicolored screen adds to the toy-like appeal. The Mastercool functioned satisfactorily, frequently maintaining its claimed precision of plus/minus 4 degrees.

7.Nubee – 8500H

Best Infrared Thermometer

Another affordable, lightweight, and feature-limited IR thermometer is the Nubee – 8500H. It is advertised to almost everyone, including farmers, mechanics, home cooks, and cat owners (it is actually marketed as a cat toy). It contains a single laser, a temperature range of -58 to 1022 degrees Fahrenheit, and unlike its less expensive rivals, a mode for calibrating emissivity.

Like the Etekcity, the Nubee has a blue LCD screen that is difficult to read. Although it failed to record the temperatures of the pizza stone and freezer, its performance was only fairly accurate.