The “Lakshmi Engineering Works” make Digital Soil Moisture Tension Meter, used with the soil Moisture (watermark) Sensors and soil Temperature sensor (Optional), make up a valuable system to monitor the soil moisture, Tension and temperature (Optional) available in your soil. You can use as many sensors as you like at representative sites. Then, using the Digital Soil Moisture Meter you can read each sensor individually as necessary. The importance of water to plant growth is well known. Also, effective irrigation should be properly controlled in quantity and timing.