A mm wave soil moisture sensor that can accurately measure moisture quantity in soil avoiding the effect of salt influence on the measurement.

Salt in soil disrupts the accuracy of moister measurement in soil in almost all type of high and low cost sensor in todays market (except TDR type of sensor who are very high cost). This type of low cost sensor can measure the quantity of moisture in a designated field area and transmit moisture data to irrigation hub system for accurate irrigation of the planted field.

Sensor works in a mesh network using very low power where the sensor battery can provide power for several years before its need to be replaced. This type of sensor can be deployed in numbers in a designated (due to low cost) and save lot of water who are high in cost in dray land area (like Africa or desert lands in Asia).