infrared training banner 2

Thermal Imager reviews by thermographers for thermographers

WARNING: Read this first.


Don’t make the mistake of buying what the sales guy told you or the cheapest camera you can afford. Chances are, neither will work for you and you will end up spending more in the long run. As a thermography trainer for more than 20 years, in every class I teach I meet students who reluctantly admit to purchasing the wrong equipment, through either poor advice, not allowing sufficient budget for the application (ie being cheap), thinking they can get away with being cheap or all of the above. Sales people are usually driven by budgets and kpi’s. Most I’ve met don’t have any formal training training in thermography. While they might have used a camera for sales demonstrations, it’s unlikely they’ve spent days, weeks or years, scanning switchboards, overhead networks, plant & process equipment, climbing through roofs or underfloor spaces with a thermal imager. It is also unlikely they’ve spent countless hours downloading ... Read more...

Recent Reviews

IPI-R9 Infrared Thermal Imager

The IPI-R9 is certainly at the high end of image performance. The French detector is surprisingly uniform and crisp, delivering 110,592 pixels of measurement from the 384x288 detector. I say surprisingly because compared to other brands in the market that utilise this same detector, this one has virtually no drift and exceptional stability at the periphery of the image. The stated thermal sensitivity of 80mk appears to be a very conservative number, as this image looks every bit as good as cameras I’ve seen with much lower stated NETD’s. Read More »

Selecting the Right Infrared Camera

infrared training

Selecting the Right Infrared Camera Infrared camera is an ideal and simple solution for many demanding temperature measurement applications. The most difficult challenge people face is choosing the appropriate equipment and knowing how to use it properly. Aside from the thermographer, equipment is the greatest limiting factor in performing an infrared inspection. Using incorrect instrumentation can significantly impact the accuracy of ... Read More »

Selecting the Right Infrared Camera (Resolution and Spot Size)

Infrared Camera Resolution and Spot Size What resolution should I buy? This is the first big question that most people must answer when deciding on which thermal imager to buy. The size and number of picture elements (pixels) produced by a thermal imager is the primary performance specification and is generally termed “detector resolution”. There are both qualitative and quantitative ... Read More »

Selecting the Right Infrared Camera (Thermal Sensitivity)

infrared camera thermal sensitivity

Thermal Sensitivity Thermal Sensitivity is an often overlooked objective specification. The number is small, and seemingly insignificant, but has major implications to image quality and measurement capabilities. Most uncooled cameras will have sensitivity of around 0.1°C. This is considered average. The better uncooled sensitivities are less than 0.08 and the worst are closer to 0.2°C. Thermal sensitivity has a large ... Read More »

IPI-Eclipse Corona Camera Review

Corona Camera 1

IPI-Eclipse Corona Camera For many years ultraviolet technology and corona cameras have received relatively minor attention and as a result their development has been rather slow. Only a small handful of companies manufacture Corona Cameras, and most of the modern equipment looks like what thermal imagers did 20 years ago (think post cold war Russian hardware!). That said, in recent ... Read More »

Testo 875-1 Thermal Imaging Camera

Testo 875

The Testo 875 represents the entry level unit in Testo’s range of Building Thermography Cameras. While these units are purpose built for building thermography, they actually perform remarkably well across a whole range of thermography disciplines. With a temperature range up to 280°C the Testo 875 is plenty capable for the majority of electrical and mechanical applications. A key design feature throughout the entire Testo fleet is the -20 to 100°C primary range which keeps the thermal sensitivity sharpest for building thermography. Read More »

Image Fusion, Blending, Rendering, Multi Spectral Imaging…

I’ve lost a lot of my life to answering questions about Image Fusion, Image blending, Visual Rendering and Multi Spectral Imaging. I am talking about all the graphical gimmickry that manufacturers perform by blending visual and thermal images into a single image. Whatever they call it, it doesn’t impress me. In my opinion it’s a great party trick but has ... Read More »