Holster for GMC-600/5x0/+ geiger counters and EMF-3x0 EMF detectors

This is a holster I made for my GMC-600 geiger counter/radiation detector. It should work for several models sold by GQ Electronics, as well as a number of their EMF detectors which use the same plastic enclosure.

My GMC-600 has the ability to work as a dosimeter which is a tool you keep on your person to gauge any radiation exposure that your body receives during a given time-frame. The problem is that the device is large enough that it's practically impossible to fit inside any ordinary poc