Please be kindly noted，the listed product is produced and distributed abroad and subject to the laws of its country of origin。    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·c㎡ of the soft beta rays. You can have a try.    Features:  5V power supply, or 3 * 1.5V battery; 4 * 1.2V battery, current: 12mA - 30mA.  For the detection of 20mR/h-120mR/h of gamma rays and 100-1800 off variables/points·c㎡ of the soft beta rays.  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.    Specifications:  Name: Assembled Radiation Detector Module  Material: Printed circuit board  Item size: 110 * 48 * 20mm / 4.33 * 1.89 * 0.79in  Package size: 175 * 95 * 115mm / 6.89 * 3.74 * 4.53in  Package weight: 200g / 7.05ounce    Packing List:  1 * Assembled Radiation Detector Module