By request of a thingiverse.com user this is a panel (for installing in boxes or walls ) version of the top of the enclosure ( http://www.thingiverse.com/thing:1934646 ) for the new - SMD based hardware version of the DiY geiger counter ( http://www.ebay.com/itm/162282227238?ssPageName=STRK:MESELX:IT&_trksid=p3984.m1555.l2649 and https://github.com/impexeris/DiY-Arduino-Geiger-Counter-SMD/tree/master/Enclosure%20.files%20for%203D%20printing ) by my colleague - eBay vendor impexeris ( http://www.ebay.com/usr/impexeris) .
It is for use with SBM-20 or CTC-5 geiger tubes.
push-buttons are on the inside (apparently iR remote is used instead of them)
"click/tone" switch also on the inside (probably not used)
The power switch can be installed by removing thin mask over the opening.