Klein Tools TI220 Thermal Imager for Android Devices

Published on Aug. 2, 2023, 10:59 a.m.

Thermal imaging technology has become an indispensable tool across various industries, offering the ability to detect and visualize heat emitted by objects. The Klein Tools TI220 Thermal Imager represents a fusion of this innovative technology with user-friendly design, tailored for Android devices. This section will delve into the significance of thermal imaging, its underlying principles, and the pivotal role of the TI220 in diagnostic and troubleshooting applications.

The Klein Tools TI220 is a compact and portable thermal imaging camera that connects to Android devices through USB-C or micro USB. With a resolution of 10,800 pixels, it provides crisp thermal images to detect temperature variances and troubleshoot problems. In this review, we will take a close look at the features, performance, and real-world usability of this thermal imager.

Klein Tools TI220


  • Pixels: 10,800
  • Temperature Range: -4°F to 752°F (-20°C to 400°C)
  • Connectivity: USB-C or micro USB
  • Supported Devices: Most Android devices with USB-C or micro USB, Android 6.0+
  • Extras: Durable metal case, carrying case included

Key Features

  • High resolution sensor provides clear and accurate thermal images
  • Wide temperature measurement range suitable for various applications
  • Real-time temperature monitoring with on-screen display
  • Image and video capturing capabilities
  • Klein’s Thermal Imager app enables convenient analysis and sharing
  • Durable metal case for protection and portability
  • Alarm alerts for high and low temperature thresholds

Technical Background

Thermal imagers like the Klein Tools TI220 capture infrared radiation emitted by objects and convert it into a visual image, delineating temperature variations. Understanding how these devices detect and visualize thermal energy is crucial. They are categorized based on resolution, sensitivity, and temperature range, each factor playing a pivotal role in the device’s application and performance. In this segment, we’ll explore the mechanics of thermal imaging and its critical specifications.

Market Analysis

Provide insights into the thermal imager market, highlighting trends, key players, and growth drivers. Mention how the TI220 stands out in terms of cost-effectiveness and functionality, offering a competitive edge in a technology-driven market.

Klein Tools TI220 Thermal Imager for Android Devices

Design and Build Quality

Despite its small size, the TI220 has a sturdy metal case that feels solid and durable. The front houses the thermal camera lens and an LCD touchscreen. The touchscreen provides an intuitive interface for changing settings and modes.

The included carrying case has cutouts for access to the screen and USB cable. While the case helps protect the imager, the quality is rather basic.

Overall, the TI220 is built to withstand some bumps and drops on the jobsite or in the field. Klein Tools stands behind it with a 6 foot drop rating.

Image Quality and Performance

Considering its price point, the TI220 produces good quality thermal images and videos. The 10,800 pixel resolution provides enough detail to clearly identify hot or cold spots, air leaks, moisture intrusion, and more in buildings or equipment.

The images do have some pixelation when zoomed in or when viewing smaller objects or details from a distance. But for general troubleshooting and inspection, the TI220’s imaging capabilities are extremely useful.

The temperature accuracy was spot-on when cross-checked with a thermostat probe. The Klein app also provides adjustable temperature measurement spots for precise readings.

In-Depth Technical Specifications Analysis

  • Resolution: The resolution of a thermal imager is crucial for image clarity. The TI220’s 10,800 pixels offer detailed imagery, crucial for identifying specific heat sources and potential issues.
  • Sensitivity: The ability to detect slight temperature differences is what sets apart high-quality imagers. This sensitivity allows for more precise diagnostics, especially in nuanced applications.
  • Temperature Range: The TI220’s wide range makes it versatile for various environments, from industrial settings to household inspections, broadening its utility.

Ease of Use

Getting started with the TI220 is quick and easy. Simply plug it into your Android phone or tablet, install the free app from the Google Play Store, and you’re ready to start scanning. No calibration required.

The touchscreen provides intuitive controls to change color palettes, set temperature thresholds, enable alarms, and more. Images and data are saved directly on your device for documentation.

The app streamlines image gallery organization as well as helpful tools for analyzing images after scanning. You can easily edit and share images from the app.

Enhanced Feature Analysis

  • Image Enhancement Technology: Discuss how the TI220 utilizes advanced image processing to enhance visual clarity, aiding in more accurate diagnostics.
  • User Interface and Ease of Use: Analyze the imager’s user-friendly interface, highlighting how this accessibility can streamline troubleshooting processes.
  • Connectivity and Compatibility: Explore the TI220’s compatibility with various Android devices, emphasizing the ease of integrating this tool into existing workflows.

Suitable Applications

  • Inspecting electrical wiring, panels, and equipment
  • Locating insulation deficiencies and air leaks in buildings
  • Finding moisture intrusion behind walls and floors
  • Checking HVAC systems and ductwork
  • Detecting clogs or leaks in plumbing systems
  • Monitoring machinery and mechanical equipment
  • Many other inspection and diagnostics uses

User Feedback

The Klein TI220 Thermal Imager has very positive reviews and ratings on Amazon and other sites. Users praise it for providing high quality thermal images at an affordable price point. Many reviews mention it’s easy to set up and use right out of the box.

Most users are impressed with the accurate temperature measurements and detailed imagery for troubleshooting issues. Some users noted the image quality decreases at longer distances or when zoomed in. A few reviews mentioned frustration with needing to remove phone cases to attach the imager.


  • Excellent value for performance
  • Very easy to use
  • Lightweight and portable
  • Durable construction
  • Convenient mobile app


  • Lower image quality at distance
  • Must remove phone case
  • Carrying case is low quality


MSRP: $245


The Klein Tools TI220 Thermal Imager is more than just a tool; it’s a testament to the evolving landscape of thermal imaging technology. Its integration with Android devices makes it a standout choice for professionals and hobbyists alike. As we look to the future, the potential for further innovation and broader applications of such technology is vast, promising even greater insights and efficiencies in various sectors.

Future Prospects

Discuss potential technological advancements in thermal imaging, exploring how devices like the TI220 might evolve. Consider emerging applications and how they could shape the future demand and development of thermal imaging solutions.


  • Infrared resolution: 10,800 pixels
  • Temperature range: -4°F to 752°F (-20°C to 400°C)
  • Dimensions: 2.13 x 1.07 x 0.75 inches
  • Weight: 1.12 ounces
  • Power Source: AC/DC
  • Compatibility: Most Android devices versions 6.0 or higher with USB-C or Micro-USB connectors

What’s Included

  • TI220 Thermal Imager
  • Carrying case
  • Quick start guide

How to Use

  1. Download and install the Klein Tools Thermal Imager app
  2. Remove phone case if necessary
  3. Plug the TI220 imager into phone’s USB-C or micro USB port
  4. Open app and point imager at target area
  5. Adjust color palettes and temperature settings as needed
  6. Tap to focus and capture images and video
  7. Review and analyze images in app gallery
  8. Export images as needed for reporting