Here are some of the most important key facts:
- Compact design: Total size 120 x 50 mm. 70 x 50 mm area for electronics and additional 50 x 50 mm to mount the scintillator.
- All-in-one detector: No external parts (e.g. sound card) required to record gamma spectra.
- Micro-USB serial connection and power.
- Easily programmable using the standard Arduino IDE.
- Low-voltage device: No HV needed for a photomultiplier tube.
- SiPM voltage range from 28 V to 33 V.
- Low power consumption: ~25 mA @ 5 V.
- Adjustable preamp gain for the SiPM pulses (affects energy range & resolution).
- Default Mode: Capable of up to around 40,000 cps while also measuring energy.
- Geiger Mode: Capable of up to around 100,000 cps without energy measurement.
- 4096 ADC channels for the energy range of about 30 keV to 1300 keV.
- Additional broken-out power pins and I2C header for displays, etc.
The principle of operation for the detector looks like this:

Read more »
I will try the DIY project ,I hope you provide new information.