The [GGreg20_V3](https://iot-devices.com.ua/en/product/ggreg20_v3-ionizing-radiation-detector-with-geiger-tube-sbm-20/) - Ionizing radiation detector module enclosure - top part.
You can download and print this model yourself for personal use in two parts - top and bottom. The model assumes that JST-type side connectors will be installed on the GGreg20_V3 module board. You can see how the casing looks on the GGreg20_V3 module on the product page on [Tindie](https://www.tindie.com/products/iotdev/ggreg20_v3-ionizing-radiation-detector/).
Also you can see a [Hackaday](https://hackaday.io/project/183103-ggreg20v3-ionizing-radiation-detector) Project Page.