I need of a Geiger counter to do radiation measurements of x-ray equipment, cabinets, etc. Since these are numbers going into FDA reports the counter has to be calibrated and meet all requirements for the US. Something like a Bicron Surveyor would work quite well. I would like to get a digital unit that could be used for long term measurement (downloadable to a computer), though. So the requirements are:1) Constant real-time measurement, i.e. not just one measurement for one button click plus quick response time. 2) Beeper that beeps quicker and/or louder depending on the mR/h measured. 3) Digital read-out for long term measurement.
There are two units I have seen:1) 2)
Any input is highly appreciated.