This is updated version 2.00 of our simplest Geiger Counter project based on Arduino IDE. All parts of the project are through-hole easy to solder. With your package, you'll receive detailed printed electrical circuit to assemble the board. Microcontroller comes pre-programmed, but if you want to get source files please contact us by email to get the link for downloading files.

We made several improvements in electrical circuit and Arduino program to upgrade this kit to the new level. Optimized code with true voltage feedback on high voltage makes this project much more stable for serious experiments. With a good quality Geiger Tube (like LND-712) you can test very active samples and get maximum count rate as your tube is possible to go up.

The kit supports UART logging of CPM value and can be integrated into environmental monitoring project.

Technical specifications

• High Voltage PWM Converter with true voltage feedback
• HV Converter has ability to drive 20M load, 25uA into 500V max.
• 400V and 500V Geiger Tubes are supported
• Dose-Rate Calculation and CPM counter
• New Logarithmic Bargraph with CPS counter
• Two tact buttons for controlling the software
• Moving Average CPM calculating algorithm
• UART logging with "Radiation Logger", require USB-TTL dongle
• Clicker Geiger Event Sound with Mute and Two LED's
• Supply Voltage: 5V DC
• Supply Current: 15mA at background level
• Dimensions: 89(L) x 39(W) x 22(H) mm
• Shipping Weight: 250gr
• UPC Number: 634654895707
• SKU: RH-K-GK-2-A

The newest version 2.00 of Arduino IDE Geiger Counter Kit from RH Electronics! The board is miniature PCB with through-hole parts and Atmega-328A microcontroller with installed Arduino IDE bootloader. The kit comes with a detailed electrical circuit and pre-programmed microcontroller. If you want to get source files you can contact us by email to receive the download link.

What's new in this version?

• Well-designed electrical scheme and improved PCB layout
• True voltage feedback in PWM high voltage converter that allows now to drive 20Mega ohm load on 500V
• Optimized software for fast count-rate condition
• Second screen mode with CPS counter
• Fast CPS bar graph with logarithmic scale (great for pancake tube or scint.probe)
• Native support of 500V and 400V tubes, voltage is set with jumper switch
• Two LED's with buzzer clicker and mute button
• Switch between CPM or CPS screen with button

The kit is robust hardware that designed to drive a Geiger Tube while high voltage and pulse counting are controlled by one microcontroller. This is a simple and educational project, but load capability and performance of the circuit allows to use this board also in more serious applications, like scientific research or extreme enthusiast tests. Second CPS screen mode with bargraph can be used with sensitive pancake GM tube or with externally connected scintillation probe.

Additional features

• Dose-Rate calculation and ability to calibrate through Arduino sketch
• Moving average CPM counter
• UART Logs of CPM value every 10 seconds
• 16x2 LCD Screen
• Friendly Arduino IDE source files, open source with buyer

Compatible Geiger Tubes

Default software settings of gamma doserate are for SBM-20.If you struggle to deal with Arduino IDE sketches please let us know when you purchase in PayPal comments of your order and we'll set the gamma coefficient for the different tube you have. Usually, the coefficient can be extracted from tube datasheet, in the PDF manual you can find the most command values. Some old stock tubes haven't any useful doserate conversion information in their datasheet, in that case, we'll use default SBM-20 settings.

The kit supports following GM tubes: SBM-20, STS-5, SBM-19, LND-712, LND-7312, SBT-9, SBT-11A, SI-180G, Philips 18504, Beta-1, Beta-2, Gamma-7C, Vacutec-70019A and more.

Purchase Includes

• High-Quality PCB Board
• 16x2 LCD Screen
• Electronics components with detailed electrical circuit