https://imgur.com/a/zHAcpzX https://imgur.com/a/zHAcpzX I built my own using sensors from Sparkfun (also available elsewhere, it’s a pretty standard kit). It u

https://imgur.com/a/zHAcpzX https://imgur.com/a/zHAcpzX I built my own using sensors from Sparkfun (also available elsewhere, it’s a pretty standard kit). It uses an ESP32 to read the sensors and submit the data to MQTT, then Node Red on a Pi to push the data to InfluxDB, and finally Grafana for visualization. I love having direct control over everything, and since I built the whole system I can easily expand it with other sensors like the Geiger counter in my garage (luckily that’s a boring sensor to watch) and simple displays: https://imgur.com/a/FiygpoS https://imgur.com/a/FiygpoS