Quantity   Component name
1 × Weather resistant, load cell based scale Any scale can be used as long as it has suitable weather resistance, good structural strength, and strain gauge internal measuring devices
1 × HX711 A/D amplifier-digitizer IC (or breakout module)
1 × ESP8266 based development board and case
1 × Raspberry Pi (or equiv) Single Board Computer
1 × SHT21 Temperature/Relative Humidity sensor [optional]
1 × or HDC1080 Temperature/Relative Humidity sensor [optional] This is an acceptable option if the SHT21 is not available
1 × External WiFi antenna and mount Size and type must have antenna gain suitable to distance requirements
1 × Solar Power system Size and type suitable to number of monitors and frequency of measurment