GM-45
The GM-45 is a good, bare-bones radiation detector from Black Cat Systems. It is a detector only and needs to be attached to a computer or counter. The communication interface is RS-232 and reading data from it is super easy -- I've written a Geiger counter app in one line of Bash script.
GM-45 Specifications
Size: 5.3 by 3.4 by 1.5 inches (135 by 86 by 38 mm)
Weight: 9.3 ounces (264 grams)
Window: Mica, 1.75 mg/cm2 1.75 inch / 44.5 mm diameter Minimum allowed atmospheric pressure: 540 torr (8,000 ft altitude)
Radiation detected: Alpha - Above 3 MeV Beta - Above 50 keV Gamma / X-Ray - Above 7 keV
Power requirements: Self powered from computer
Computer Hardware Requirements:
USB version - USB port
Serial versions - One available serial port
Macintosh: PowerPC processor
Windows: Pentium or better
Computer Software Requirements: Windows 98/2000/NT/XP/Vista/Windows 7 Macintosh MacOS 7.6 to 9.2, OSX 10.1.2 or later
Software Features: Built in graphing Ability to store data to disk for further analysis User selectable integration times Built in statistics package Trend line may be superimposed over graphed data "Geiger Counter" clicking may be enabled
Package includes: GM-45 Unit CD-ROM with software for both Windows and Macintosh Appropriate serial cable - please order the correct version for your system, three are available: 1. Windows with 9 pin serial port 2. Windows with 25 pin serial port 3. Macintosh with 8 pin serial port
GM-45 Performance:
