FAQ about Geiger Counter Module 【SEN0463】

Q1: How long is the lifespan of a Geiger counter.

A1: If used in a normal environment, there is no need to worry about the life of the geiger tube. However, if the radiation environment is too high, the geiger tube needs to be replaced as soon as possible.

Q2: Can I use other module of Geiger tube to replace the original one.

A2: We don't recommend that. Because the geiger module uses the interrupt counting method, the radiation value may be inaccurate if the tube is replaced with another model.

Q3: How to convert from interrupt count to nSv/h or uSv/h?

A3: We provide the convert process in our Github repo:

https://github.com/cdjq/DFRobot_Geiger

The default is high level. When the Geiger tube generates a signal, it outputs a pull-down pulse with a pulse width of about 300μs.

CPM is the pulse count per minute. In fact, it does not need to be counted for one full minute. For example, if there are 10 pulses in 20 seconds, then 10*(20/60)=30CPM

Finally, the radiation value is calculated using the calculated CPM (Count per minute)

If you have other questions, just feel free to post them in our forum for consultation. We will reply them as soon as possible and improve the product FAQ gradually.