Leica GPS 1200 series nanoSIM adapter
This is an adapter for use my nanoSIM on my Leica gx1230. Leica give you a normal SIM and i reversed enginered measuring all and i made this design that fit perfectly.
Now you can use your nanoSIM (from iphone 5 for example) in you GPS.
For made one of this do at 0.05mm or less of precision, every layer.