Geiger Counter Radiation Detector Module

Description: 
Geiger counters are used to detect radioactive emissions, most commonly beta particles and gamma rays. The counter consists of a tube filled with an inert gas that becomes conductive of electricity when it is impacted by a high-energy particle. When a Geiger counter is exposed to ionizing radiation, the particles penetrate the tube and collide with the gas, releasing more electrons. Positive ions exit the tube and the negatively charged electrons become attracted to a high-voltage middle wire. 
When the number of electrons that build up around the wire reaches a threshold, it creates an electric current. 
This causes the temporary closing of a switch and generates an electric pulse that is registered on a meter, either acoustically as a click that increases in intensity as the ionizing radiation increases, or visually as the motion of a needle pointer. 

Features:
Input Voltage: 5V power supply, or 3x 1.5V battery; 4x 1.2V battery
Input Current: 30mA
For the detection of 20mR/h ~ 120mR/h of gamma rays and 100 ~ 1800 off variables / points / cm 2 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.
Ardunio compatible
Supports most of the Geiger tube: M4011, STS-5, SBM20, J305, etc. (the 30~600V operating voltage of the Geiger tube can be supported).
Support the computer (PC) data acquisition, Matlab analysis, and processing
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 Time: > 1 x 10^9 pulse
Operating Temperature: -40℃ ~ 55℃
Size:108mm x 63mm x 20mm

Package Include:
1 x Assembled Radiation Detector System
1 x GM Tube
1 x Power Supply cable
1 x Battery Holder (without batteries)
3 x Jumper Wires
4 x Nuts
1 x Acrylic Cover