Klein Thermal Imager Review [TI250] 

 March 8, 2021

By  Randy Angwin

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Last updated on September 17, 2022

If you need to identify hot and cold spots for instant troubleshooting, then the Klein thermal imager is the perfect tool for the job. This clever imager has over 10,000 pixels for clear resolution and a large LCD screen. The meter can detect and pin point hot and cold spots in one of three color palettes and a big attraction is the micro USB charging cable that makes it easy to boost your battery whenever you need to.

This handheld thermal imager is easy to operate, making it practical for any electrician, plumber, HVAC tech or inspector’s toolbelt. The Klein tools TI250 rechargeable thermal imager allows you to quickly detect hot and cold spots in motors, pumps, panels and wiring or find cold spots caused by unseen water damage.

In the rechargeable thermal imager Klein added crosshairs that make it simple to pinpoint the exact problem area with ease and accuracy. For added convenience it comes in a handy carrying case to protect your asset.

About Klein Tools

The Klein tools company was founded in 1857 by Mathias Klein and has been passed down through five generations. The Klein tools company has grown over the years, becoming a trusted household name for virtually any type of hand tool. Its products are used in the mining, construction or the electrical field and is now sold all over the world.

The Klein Tools mission statement shows their dedication to providing professionals with quality tools that make 'getting the job done' so much easier.

Up until this day the Klein family are still deeply involved with the company. When you buy Klein tools you’re not only purchasing high end units, but also supporting a family business.

TI250 Review

Klein Tools TI250 Rechargeable Thermal Imager, Camera Displays Over 10,000 Pixels with 3 Color Palettes, High/Low Temperature Points

The TI250 rechargeable thermal imager is so popular due to its small size of 3” x 3” x 1” and how easy it is to use. An added benefit is that the TI 250 thermal imager can store and share images for reporting, quick review and easy processing.

This lightweight handheld rechargeable thermal imager is so easy to operate. Simply turn the TI 250 thermal imager on and point it in the direction where you think the problem may be. A reading will then instantly appear on the screen. It provides both high and low temperature readings in one of several color palettes the meter provides. Pick on of your preference. 

To add extra storage space, you can purchase a separate but optional microSD card on which to store images for reporting. The card is an additional purchase and not included in the box as standard accessories.

Klein Tools TI250 Rechargeable Thermal Imager, Camera Displays Over 10,000 Pixels with 3 Color Palettes, High/Low Temperature Points

This compact rechargeable thermal imager boasts a sensor resolution of 10,000 pixels to troubleshoot hot and cold spots efficiently. One of the most notable features is that there is a choice of three color palettes to select from. Make it easy to determine exactly what you’re looking at, so instant troubleshooting can be a breeze.

For high and low temperature detection, the TI250 rechargeable thermal imager has a temperature range of between -4° and 752°F. it has low temperature points crosshairs to pinpoint specific problems without guess work on your part.

It has a powerful rechargeable lithium ion battery and you can use a USB cable as power source. The rechargeable thermal imager has a battery life of up to 4 hours. The rechargeable thermal imager comes equipped with a thermal imager micro USB charging cable carrying case and instructions.

What is the Klein Tools TI250 Thermal Imager Best Used For?

Klein Tools TI250 Rechargeable Thermal Imager, Camera Displays Over 10,000 Pixels with 3 Color Palettes, High/Low Temperature Points

Those in the construction or electrical field can use the TI250 rechargeable thermal imager to quickly detect hot spots in engines, pumps or faulty wiring. It could also help the average consumer detect leaks, water damage and water clogs, even behind walls.

Easily set high and low temperature alarms from -4 to 752°F (-20 to 400°C) for ultimate trouble shooting in the least amount of time.

Scanning rooms for problems is simple and you can easily see issues that are not visible with the naked eye. The device will pick up hot spots or cold spots. If you find a problem simply snap a photo that will be saved. You can store and share images or analyze it later. This makes it practical for vendors who need records for reports.

You can even scan the ceiling while standing on the floor, so there is no need to pull out the bulky ladder. Where safety is paramount, this rechargeable thermal imager will help. 


  • Sensitivity: <60 mk 
  • Temperature range: - 4° to 725° F
  • Field Of View: 50° (horizontal and vertical)
  • Color Pallets: Ironbow, Rainbow and Gray
  • Display type: 2.4’ TFT LCD
  • Emissivity: 0.10 to 0.99
  • Optional microSD card
  • Resolution with over 10,000 pixels to troubleshoot effectively
Klein Tools TI250 Rechargeable Thermal Imager, Camera Displays Over 10,000 Pixels with 3 Color Palettes, High/Low Temperature Points

What Users are Saying

Users seem to like this Klein tools TI250 thermal imager due to how easy it is to use and the ability to set and customize your color palette to best suit your needs. A few clients have contacted the manufacturer and asked them to include a microSD card in the package as it’s frustrating to need one and not have one on hand.

  • Lightweight and easy to use
  • Powerful 5-megapixel camera
  • Touchscreen
  • Helps shorten inspection time
  • Simple sharing and reporting
  • Tough and durable case
  • Micro USB charging cable makes for easy charging anywhere
  • Can capture and store images
  • Choice of three color palettes the meter provides
  • Provides high and low temperature feedback
  • Customizable in options for temperature alarms
  • May lag slightly
  • Not compatible with Flir Tools so photos must be downloaded
  • No microSD card in package

Closing Thoughts

This unit on the Klein tools thermal imager list would be a great addition to any tool box whether you are an expert in the field or just adding it to your home DIY workbelt. The fact that it’s so easy to use, means you can detect a potential problem with this thermal camera early. This will save time in maintenance or you can call an expert before too much damage has occurred.

Professionals can use the Klein tools TI250 rechargeable thermal imager in their daily work to troubleshoot problems quickly. You can capture and store images, making it perfect for reporting and sharing. Simply share images with optional MicroSD card purchases to optimize this USB rechargeable thermal imager. The Klein tools TI250 device comes with a limited warranty and is sold at a reasonable price point. It will quickly pay for itself by finding problems before they get out of hand and very expensive.

About the author 

Randy Angwin

Randy Angwin holds a master of science degree from University of Florida. He is an expert in infrared and night vision technology. His knowledge helps us staying on top of the latest trends in the thermal industry. When not working, Randy likes to hunt and spend time with his two German shepherds.

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