Unassembled DIY Purple Geiger Counter Parts Kit Module Nuclear Radiation Detector with Sound and Light Alarm Function 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 alarm and light alarm function. 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 computers (PC) data acquisition, Matlab analysis and processing. Compatible with: (recommended UNOR3, or any other arbitrary with 5V and external interrupt INT) Internet can be downloaded: S-PI example for Radiation Logger Logger Radiation can be used as the host computers software to build radiation monitoring station. Specifications: 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 Operating voltage: 550V The maximum count rate: 25 times / min 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 / 5.29ounce  Packing List: 1 * Unassembled Radiation Detector Module Set