1. Protection level IP68, can be buried in the soil for a long time, resistant to long-term electrolysis, corrosion, vacuum potting, completely waterproof. 2. The soil moisture temperature humidity sensor is suitable for measuring soil temperature humidity, with high accuracy, fast response stable output. 3. The soil moisture sensor is less affected by soil salt content is suitable for all kinds of soil. 4. It adopts analog output, flexible output, can output current or voltage type, the wiring can adopt three-wire system. 5. It is widely used in scientific experiments, water-saving irrigation, greenhouses, flowers vegetables, grassls, soil rapid testing, plant cultivation, sewage treatment, grain storage measurement of moisture content temperature of various particles.