Supports most Geiger tubes: M4011, STS-5, SBM20, J305, etc. (Geiger tubes with a working voltage of 330~600V can be supported). Support computer (host computer) to collect data, Matlab analysis and processing, send the collection program as a gift source code, data screenshots (the data is constantly increasing and updated, the actual data shall prevail): Model: GC-1602-NANO Plug it and you can directly measure nuclear radiation. Features: For the detection of 20mR/h ~ 120mR/h of gamma rays and 100 ~ 1800 off variables / points of the soft beta ray. Sound and light alarm. Interrupt the output interface, through this interface can be connected to the microcontroller and then displayed on the LCD. Supports most of the Geiger tube: M4011, STS-5, SBM20, J305, etc. (the 330~600V operating voltage of the Geiger tube can be supported). Support the computer (PC) data acquisition, Matlab analysis and processing. Specifications: Geiger tube parameters: Technical parameters diameter: 100.5mm Total length: 902mm Starting voltage: < 350V Recommended operating voltage: 380V Minimum plateau length: 80V Maximum plateau slope: 10%/80V Extreme operating voltage: 550V The maximum count rate: 25 times / min Life: > 1 x 10^9 pulse Medium temperature: -40 ~ 55 Item size: 118 * 63mm / 4.6 * 2.5in Package size: 130 * 80 * 50mm / 5.1 * 3.1 * 2.0in Package weight: 150g / 5.3ounce Package list: 1 x Assembled Radiation Detector System(with LCD and Arduino Nano)