Fuente: Wipo "precision farming" DEVICE FOR SOIL AND LIQUID TESTINGAbstractDisclosed is a battery operated, portable device (100) for instant, on-field soil and liquid testing. The device (100) consists of a housing (10) having a handle (20) mounted thereon for gripping and a probe (30) configured there below for inserting into the soil. Sensors for measuring soil parameters like pH, moisture content, temperature and electrical conductivity are mounted on and within the probe (30). A soil and liquid testing circuit (12) is mounted within the housing (10) for applying voltage across the sensors and for receiving signals there from to convert into electronic counts in ASCII format, that is further displayed on display unit mounted on the housing. Moisture and electrical conductivity of the soil is measured using capacitive sensors (32a, 32b) that are metal electrodes (6) of thin sheet material, mounted on an insulating base (4) and partially impregnated with a thin sheet of conductive alloy material.Figure 1