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 × Temperature/Humidity sensor (or breakout module) Must fit inside a queen cage and be high quality with reasonable calibration to 100% RH
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