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Fluke Ti400

Fluke Ti400 Thermal Camera Review

When you hear engineers and home inspectors gushing over a cool new tool, you should know it’s excellent. The Fluke Ti400 Thermal Infrared Camera is one of the best thermal cameras I have ever reviewed. 

I am not alone in my admiration of this high-tech feature-loaded thermal camera. Everyone from home inspectors to fire marshals is making an upgrade to the Fluke thermal imager. It’s not cheap, but once you use it, you’ll agree that the price is worth it.

It has one of the highest resolutions in the thermography industry, includes laser focusing for precision measurements and has a wider temperature range than almost any other thermal camera. All these plus many other add-ons to make your work easier and more precise.


  • Utilities
  • Facilities maintenance
  • Building diagnostics
  • Predictive maintenance

Noteworthy Features

Often, you’ll find high-end tools that are nothing but gimmicks. They are packed full of unnecessary features just to justify their ridiculous prices. The Fluke Ti400 is far from such. Each and every feature built into it has a specific purpose.

Fluke Ti400 Thermal Camera

Most importantly these features expand the project scope of the camera, making it one of the most versatile in the industry. Whether you are a builder, an electrical engineer or you work in utilities, the Fluke Ti400 has you covered.

High Resolution

With a 320 x 240 resolution (76,800 pixels), the Fluke Ti400 ranks near the top among thermal cameras. It produces stunning images with precise detailing and unmatched clarity. Other benefits of having a high resolution are;

• It can spot smaller targets even at long distances.

• It has a higher distance range. Some users have used it at a distance of 200 and even 300 feet.

• The image is more detailed. One of the users was able to diagnose a problem within 2 hours that had taken other technicians (without the camera) over two days without spotting the problem. This was thanks to a highly detailed image that shows the smallest of details.

• More accurate measurements.

• More pixels means a larger field of view. This allows the camera to capture more details, both big and small.

Laser Autofocus

With just the touch of a button, you can zero in on a specific area and get a highly accurate measurement. The Fluke Ti400 uses proprietary LaserSharp® Auto Focus technology that ensures pinpoint accuracy every time.

The built-in laser system provides a precise distance measurement to your target area. You can also turn off the autofocus if you prefer manual focusing.

High Thermal Sensitivity

One of the most important measures of a thermal camera’s performance is its sensitivity to temperature graduations. In other words, how small of a temperature variation can it spot? This determines how precise it is in measurements.

While most other cameras can measure differences as low as 0.07 to 0.15 degree Celsius, the Fluke thermal imager goes even lower. It has a thermal sensitivity of 0.05 degree Celsius. If you are doing thermal imaging where precision is paramount, the Fluke Ti400 is the best tool.

Fluke Ti400

Wide Temperature Range

Most thermal cameras offer a substantial temperature measurement range. The FLIR TG165 has a range of -13°F to 716°F. The FLIR Ex Series turns the heat up with a range of -4°F to 1,202°F.

The Fluke Ti400, however, beats them all with the widest range of -4°F to 2192°F. These are not just meaningless numbers to get people to buy the camera. A wider range means that the camera can be used in many more applications than other cameras.

Different professionals from varying industries are finding the Fluke Ti400 to be highly useful. Some are even considering expanding their specialties because they’ve found a camera that can be used in many different situations.

So if you are looking for a highly versatile thermal infrared camera, I highly recommend this one.

Digital and Infrared Image Overlay

This is another feature that makes the Fluke Ti400 a must have for professionals. The manufacturer calls it Fluke IR-Fusion technology.

In addition to the infrared thermal sensor, the Fluke Ti400 also has a 5-megapixel camera that takes normal digital images alongside infrared images. The two images are not presented separately but are overlaid pixel-for-pixel to create a unique, comprehensive imagery.

This allows for more in-depth and accurate analysis.

Extra Features

Other features I loved include:

• Built-in WiFi. You can transmit images wirelessly from the camera to the Fluke Connect System. This allows technicians to live stream their work to a remote PC or smartphone, a particularly major benefit for collaborating teams.

• Widescreen full-color display for clear pictures and a wider field of vision.

• Easy to use with three well-placed buttons for navigation and control.

• You can set color alarm modes to spot problems in an area quickly.

• In addition to the standard image file, you can also save annotations and voice recordings. This provides more comprehensive reporting and post-field analysis.

• Compatible with optional 2X and 4X telephoto lenses that boost camera performance.


​Durability Issues

A few customers had problems with their cameras acting up after a few months or some parts getting loose. Make sure you handle the camera with care. It does not seem to be built as strongly especially for a field tool.

The warranty is two years long so that should give you some confidence.

Best Fluke Ti400 Camera

Learning Curve

One of the downside to having so many high-tech features is that it takes some time before you learn your way around the camera. But if you have handled IR cameras before, it shouldn’t be too hard. You’ll be used to it in no time.

In any case, the camera comes with a comprehensive user guide and user manual. These two documents contain everything you need to start using the Fluke Ti400. And if you still have problems, contact customer support.


  • Resolution: 320 x 240
  • Video: 5 MP
  • Temperature Range: -4°F to 1,202°F
  • ​Weight: 2.3 lbs.
  • Sensitivity: ≤ 0.05°C


For several thousand dollars, the Fluke Ti400 has a lot of expectations from customers. Fortunately, it does not disappoint. Your money will be well spent buying this camera.

The resolution is a game changer, and the versatility ensures you’ll never need to buy another IR camera. Throw in all the added features, and you have a tool that surpasses the expectations of even the most demanding professionals.

About the Author Rob Carson

I work in commercial construction, in Dallas, TX.

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