Lighter than a GoPro this dual thermal setup features Flir Lepton sensor and a reference RGB camera. It is the smallest and most affordable drone thermal camera made specifically for airborne use. Plug-and-play with any analog video transmitter-receiver. Output is analog video with two pictures side by side.
The connection is a standard 3-pin servo plug that has Video signal + 5V in + Ground. It is also available with a standard GoPro gimbal.