Archive for the ‘Thermal Cameras’ Category


The Kalt Sensor is a small accessory for your smartphone or tablet that is able to turn it into a precise non-contact infrared thermometer. The device plugs into the headphones jack of your iOS or Andorid device and after you install a dedicated application you are able to measure the temperature of various objects around you. The Kalt Sensor essentially reads the infrared energy that the object emits and translates that in user readable temperature of your choice in either Fahrenheit, Celsius or Kelvin. So by adding this sensor to your mobile device it will become much like those portable gun-like infrared thermometers sold at hardware stores. The project was successfully crowdfunded on Kickstarter raising $11100 USD with 217 backers, but if you missed to back it up then you can pre-order your sensor from the official website. The product is available in two main versions – with normal and with extra range sold for $43 and $48 USD respectively as well as in 4 different case colors and with an optional extension cable.

Kalt Sensor Specifications:
– High accuracy of 0.5°C over wide temperature range
– -70 to +380°C for object temperature
– Field of view 90 degrees (2:1 ) for normal model
– Field of view 35 degrees (6:1) for extra range model
– Displays the temperature in large , easy to read numbers
– Emissivity: 0.1 to 1 selectable from the app
– Response time less than 400 msec

What is important to note when choosing between the normal and extra rage model is the distance and size of the objects you are going to be measuring most of the time. The normal range model is for measuring larger objects from close distance due to the low ratio it has, so for example form 2 centimeters distance you will be measuring the temperature of a surface of 1 centimeter. The extra range version will allow you to measure the same 1 centimeter surface from 6 centimeters distance, or about 0.33 centimeter surface area from 2 centimeters. So make sure you have this in mind when deciding between the normal and extra range version.

For additional details and to pre-order a Kalt Sensor for your smartphone or tablet…


Another interesting project from the same guys that brought the Lepton breakout board – Pure Engineering is the Lepton Demo Camera that can turn a FLIR Lepton thermal imaging sensor into a portable thermal camera. The project is basically a for the internals of a tiny digital camera that can take thermal photos onto a microSD card and view a live feed from the thermal sensor on the LCD screen. The FLIR Lepton Demo Camera kit comes without the Lepton thermal sensor, you need to source that separately. The camera kit is available from GroupGet at a price of $150 USD and minimum order quantity is 25 units – meaning that 25 people are needed to fulfill the group get too be successful. It is definitely an interesting project that will allow you to have a really portable battery-powered thermal imaging camera based on the FLIR Lepton thermal imager.

For more information about the FLIR Lepton Demo Camera project at GroupGets…


Besides the FLIR ONE thermal imaging accessory for iPhone 5/5S there is another product from FLIR that uses the affordable Lepton micro thermal imaging sensor – the FLIR TG165 Imaging IR Thermometer. Note that FLIR calls this device an Imaging IR thermometer, but it is essentially a low resolution thermal camera with a bit limited functionality. What the device does is provide you with a thermal image with a resolution of 80×60 pixels with a center spot meter report of the temperature that you point it at, so you get the best of both worlds – a thermal image for more accurate measurements and a precise infrared thermometer in once device. Unlike a traditional spot only infrared thermometer with the FLIR TG165 you can also save thermal images just like with a thermal camera. It is not as functional and feature rich as a full fledged thermal imaging camera, but for the price of $499 USD you can really get a very powerful device for measuring temperature accurately.


FLIR TG165 Specifications:
– Basic Accuracy: +/- 1.5% or 1.5°C
– Temperature Range: -25 to 380°C, -13 to 716°F
– Emissivity: 4 Pre-Set Levels with Custom Adjustment, 0.1 to 0.99
– Dist. to Spot Ratio (D:S): 24:1
– Measurement Resolution: 0.1 °C / °F
– Response Time: 150 Milliseconds
– Spectral Response: 8 to 14μm
– Lasers: Dual Diverging Lasers, Frames Temp Measurement Area
– Imaging Detector: FLIR Lepton Microbolometer Focal Plane Array (FPA)
– Shutter: Integrated Automatic Shutter
– Image Resolution (H x W): 4800 Pixels (80 x 60)
– Spectral Response: 8 to 14μm
– Field of View (H x W): 50° x 38.6°
– Upper Scene Range: 127°C, 260°F (400K)
– Thermal Imaging Sensitivity: 150mK
– Frame Rate: 9 Hz
– Color Palettes: 2 (Grey Scale, Hot Iron)
– Saved Image Format: Bitmap (BMP) Image with Temperature and Emissivity
– Unit Size (H x W x D): 7.3 x 2.2 x 3.7 in (186 x 55 x 94 mm)
– Display Type: 2.0 in TFT LCD
– Display Resolution (W x H): 38720 Pixels (176 x 220)
– Battery: Rechargeable via Micro USB Lithium-ion Battery: 3.7V, 2600mAh
– Battery Life Hours: Typical Use Five 8-Hr Work Days; Continuous Use: 8 Hrs
– Memory: 8Gb Micro SD Card

For more information about the FLIR TG165 Imaging IR Thermometer…