Type 1    Plug it and  you can directly measured 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: Φ10±0.5mm Total length: 90±2mm 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: 166g / 5.9ounce  Package list: 1 x Assembled Radiation Detector System        Type 2    This is a set of fine quality nuclear radiation detect module unassembled parts set, plug it and you can directly measured nuclear radiation. For the detection of 20mR/h-120mR/h of gamma rays and 100-1800 off variables/points of the soft beta ray. You can have a try. Features: 5V power supply, or 3 * 1.5V battery; 4 * 1.2V battery, current: 30mA - 120mA. For the detection of 20mR/h-120mR/h of gamma rays and 100-1800 off variables/points of the soft beta ray. Equipped with sound and light alarm. 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. Detection of nuclear radiation work (copy the following link to the browser to watch): Http://v.youku.com/v_show/id_XNzI3MTU2NzQ0.html Customers using our Geiger counter to record the video: Http://v.youku.com/v_show/id_XOTE4ODIyNTIw.html Compatible with: (recommended UNOR3, or any other arbitrary with 5V and external interrupt INT) Internet can be downloaded: SPI example for Radiation Logger Logger Radiation can be used as the host computer software to build radiation monitoring station. Specifications: Model: GC-1602-NANO Material:  electronic component  Geiger tube parameters: Technical parameters diameter: Φ10±0.5mm Total length: 90±2mm 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 * 10^9 pulse Medium temperature: -40 to 55 ℃ Item size: 108 * 63 * 20mm / 4.25 * 2.48 * 0.79in Item weight: 100g / 3.53ounce Package size: 120 * 80 * 40mm / 4.72 * 3.15 * 1.57in Package weight: 150g / 5.