Watermark soil moisture sensor is used with the Wireless Soil Moisture/ Temperature Station. Station comes with one soil moisture sensor. Up to three more (for a total of four) may be added. Includes 15' (4.6 m) cable.
The WATERMARK soil moisture sensor is an indirect, calibrated method of measuring soil water content. It is an electrical resistance type sensor. The Soil Moisture/ Temperature Station converts the electrical resistance reading from the sensor into a calibrated reading of centibars of soil water suction with a range from 10 to 200 centibars.
All sensors and the Sensor Mounting Shelf are compatible with either the original Vantage Pro or the new Vantage Pro2.