Quantity   Component name
1 × WeMos LOLIN32 https://wiki.wemos.cc/products:lolin32:lolin32
1 × Gravity Analog PH Module https://www.dfrobot.com/product-1110.html
1 × Gravity: Analog Electrical Conductivity Sensor https://www.dfrobot.com/product-1123.html
1 × DS18b20 Water Temperature Sensor https://www.sparkfun.com/products/11050
1 × Water Flow Sensor https://www.dfrobot.com/product-1531.html