Flir, who has been making military grade thermal cameras for decades, just announced several new consumer thermal cameras at the Consumer Electronics Show in Las Vegas this month. The $999.99 Flir Duo and $1,299.99 Flir Duo R work on any drone that supports GoPro devices. They both have a 1080p visual camera and the ability to synchronize the thermal images to the video. The difference is that the Flir Duo R has the ability to calibrate the temperature measurements so you can get a very accurate reading of the temperatures you are seeing. These devices will be very handy for construction workers, building inspectors, law enforcement and many other public servants.
To read more about the Flir Duo and Flir Duo R, check out this article on PC Mag.
http://www.pcmag.com/news/350736/drones-can-scan-you-in-infrared-with-flirs-new-camera