1The protection grade is IP68, which can be buried in the soil for a long time, resistant to long-term electrolysis, corrosion, vacuum filling and sealing, completely waterproof. 2The soil moisture temperature humidity sensor is suitable for the measurement of soil temperature and moisture, with high precision, quick response and stable output. 3This soil moisture sensor is less affected by soil salt content, and is suitable for all kinds of soil. 4Analog output is adopted, which is flexible and can output current type or voltage type. Three wire system can be used for wiring. 5It is widely used in scientific experiments, water-saving irrigation, greenhouse, flowers and vegetables, grassland and pasture, soil rapid measurement, plant culture, sewage treatment, grain storage and measurement of moisture content and temperature of various particles.Condition: 100% Brand New Item Type: Soil Moisture Sensor Material: ABS, 316 Stainless Steel Power Supply: 12-24V DC Moisture Measurement Range: 0-100% Storage Environment: -40 to -80 Moisture Accuracy: 3% (In Range of 0 - 53% ) / 5% (In Range of 53 - 100%) Response Time: Cable Color Description Power Supply Brown Power Supply Positive (12-24V DC) Black Power SupplyNegative Communication White Humidity Voltage / Current Output is Positive Gray Temperature Voltage / Current Output is Positive Blue NC Yellow NC }1 x Soil Moisture Sensor1 x Instruction Manual1.Please allow 0-1 inch error due to manual measurement. Thanks for your understanding.2.Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.