This assembled and finished Geiger counter is based on BroHogan excellent "DIYGeigerKit". I added the LCD display, the Geiger tube/sensor (Russian SBM20), the enclosure, the battery holder and the on/off switch.
The device uses the Arduino-compatible pre-programmed ATmega328 chip, whose software can be upgraded if desired.
The display shows the radiation level in CPM (clicks per minute) and sieverts (using an empirical conversion method).
The Geiger counter is housed in a plastic container, originally designed for holding office staples, with a detachable lid (removed in the photo). The construction is pretty solid, making it a practical device for measuring beta and gamma radiation in the field. Power is supplied by 4 rechargeable AA batteries (1.2V each), which are not included (because the postal service does not allow shipping batteries).
Have any questions?
Contact the shop owner.
