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Klein Tools IR1 vs Lasergrip GM400 Infrared Thermometer Side-by-Side Comparison

It doesn’t take us long to make a recommendation between the Klein Tools IR1 and the Lasergrip GM400, considering the performance rift between them.

By , , and ·Updated

Klein Tools IR1 Infrared Thermometer

Lasergrip GM400 Infrared Thermometer

Klein Tools IR1 vs Lasergrip GM400 Infrared Thermometer

Overall Verdict

Ranking by
OverallScore Performance70% Design20% Usability10% ScoreOverall 70%Performance 20%Design 10%Usability Klein Tools IR1 Inf...Lasergrip GM400 Inf...
Showing: 2/2 Items

Between the Klein Tools IR1 and the Lasergrip GM400 is a performance rift so large it doesn’t take us long to make a recommendation in favor of the Klein Tools IR1 at all. Our benchmark gives the Klein Tools IR1 a total score of 7.9 out of 10. Meanwhile, the Lasergrip GM400 only receives 5.3, having failed the cold test with ice.

As such, without considering other factors such as design and usability, you’re better off with the Klein Tools IR1.

Pros & Cons

  • Rugged, industrial-grade design
  • Quality IR sensor provides decently accurate readings
  • Bright laser emitter
  • Bright backlit LCD display panel
  • Passable measurement performance in the hot test with cooking oil
  • One of the lightest IR thermometers in our database
  • Doesn’t come with any extra measurement mode
  • The measurement unit switch and battery are hidden behind a screwed-in door
  • Poor measurement accuracy in the cold test with ice
  • Lackluster build quality
  • Dim laser emitter
  • Lack of extra measurement modes

Key Specs

L4 x W1.77 x H5.9 inches
L4 x W1.57 x H6.3 inches
6.8 ounces
4.36 ounces
Display type
Backlit LCD panel
Backlit LCD panel
Measurement modes
Audio cues
Temperature range
-4 to 752°F (-20 to 400°C)
-58°F - 752°F (-50°C - 400°C)

Where to Buy

Price at publication

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Analysis and Test Results


Overall Performance Scoring


Overall Design Scoring


Overall Usability Scoring

Behind the Comparison

Headshot of Matthew Lee
Matthew LeeReviewer

Matthew Lee is a writer and editor for HealthyKitchen101. With over 8 years working for various outlets and agencies, specializing in tech review and other subjects of note, such as current affairs.

Headshot of Lap Vo
Lap VoTest Lead

Lap is Head of the Research, Testing, and Review Team (RTR Team) at HealthyKitchen101.com, where he directs and supervises the testing of kitchen gadgets and appliances.

Headshot of Nguyen Ntk
Nguyen NtkVisual Specialist

Nguyen Ntk is a graphic designer, photographer, and videographer whose philosophy centers around respecting and celebrating the beauty of reality. Through his lenses, Nguyen strives to capture the true essence of objects and events, showcasing and highlighting authentic features without distortion or exaggeration.

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