Table 1 Sensors and related parameters applied in device
Types | Water level sensor | Water temperature sensor | Air temperature and humidity sensor | Light sensor | Carbon dioxide concentration sensor |
|---|---|---|---|---|---|
Function | Measuring water level of farmland | Measuring water temperature of farmland | Measurement of air temperature and humidity in farmland | Measurement of light intensity in farmland | Measurement of carbon dioxide concentration in farmland |
Related parameters | Voltage 12–36 V The measuring range is 0–0.5 m | Voltage 3–5 V The measuring range is 0–100 °C | Voltage 2.4–5.5 V Temperature measuring range -40–124 °C Humidity measurement range 0–100% | Light intensity range 0–20,000 lx Spectral range 320–730 nm | Voltage 3.3 V measuring range 0–20,000 ppm |