Recently I purchased a Seek CompactPro (Thermal Imager) and wasn't comfortable with the way the Camera mounted on the Lightning port. Firstly, the device is costly and I didn't want it to fall out or break off. Secondly the mounting felt awkward during use.
This is a simple mount the encompasses the Seek CompactPro and snaps on the back of my iPhone 7 Plus with Tech 21 case. Because I know most people aren't going to have my phone/case combo I included the Rhino File.
Lightning Adapter I used
3mm Plastic Screws I used
** I assume this will work for all of their versions (Compact & CompactXR) including the micro USB, however I have no way of confirming it.