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 and humidity sensor is suitable for measuring soil temperature and humidity, with high accuracy, fast response and stable output. 3. The soil moisture sensor is less affected by soil salt content and is suitable for all kinds of soil. 4. It adopts analog output, flexible output, can output current or voltage type, and the wiring can adopt three-wire system. 5. It is widely used in scientific experiments, water-saving irrigation, greenhouses, flowers and vegetables, grasslands, soil rapid testing, plant cultivation, sewage treatment, grain storage and measurement of moisture content and temperature of various particles.