Great news! Several more customers have connected to the gmcmap.com radiation detectors based on our GGreg20 radioactive particle detector module. (On the Tindie marketplace )
First one: Lyon, France
https://www.gmcmap.com/historyData.asp?Param_ID=79913303488
![](https://iot-devices.com.ua/wp-content/uploads/2023/07/gmcmap_diy_ggreg30_v3_lyon1_2023-07-16_164541-1024x640.jpg)
Another sensor with GGreg20 module in Lyon, France
https://gmcmap.com/historyData.asp?Param_ID=81743704750
![](https://iot-devices.com.ua/wp-content/uploads/2023/07/gmcmap_diy_ggreg30_v3_lyon2_2023-07-16_164541-1024x640.jpg)
Next sensor with GGreg20 module in Pilsen, Czechia
https://gmcmap.com/historyData.asp?Param_ID=46638764351
![](https://iot-devices.com.ua/wp-content/uploads/2023/07/gmc_map_plzen_czechrepublic_ggreg20_v3_sbm20_2023-07-12_230957-1024x607.jpg)