Find the exact mounting dimensions for J305 and SBM20 tubes on the GGreg20_V3 Geiger counter module. Ensure perfect compatibility for your DIY projects. Feel free to choose to buy the module with or without the tube.

Read the full article:
https://iot-devices.com.ua/en/ggreg20-v3-j305-tube-mounting-dimensions/
IoT-devices, LLC
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