Feature: 1. Soil moisture sensor is suitable for soil moisture and moisture measurement, which has high precision, quick response, stable output. 2. It is less affected by soil salt content and suitable for all kinds of soil. 3. It can be buried in the soil for a long time, resistant to long-term electrolysis, corrosion resistance, vacuum filling and sealing, completely waterproof. 4. Adopts analog output, can choose the output current type or voltage type, wiring can be three-wire system. 5. It is widely used in scientific experiments, water-saving irrigation, greenhouse, flowers and vegetables, grassland pasture, soil rapid measurement, plant culture, sewage treatment, grain storage and measurement of moisture content and temperature of various particles. Specification: Condition: 100% Brand New Item Type: Soil Moisture Sensor Material: ABS + 316 Stainless Steel Power Supply: 12-24V DC Moisture Measurement Range: 0-100% Output Signal: 4-20mA Water Accuracy: ±3% (0-53%),±5% (53-100%) Installation: All embedded or all probe inserted into the measured medium Response Time: <1s Protection Grade: IP68 Power Consumption: ≤ 0.15W (@12V DC, 25℃) Working Pressure Range: 0.9-1.1atm Length: Approx. 13.8cm / 5.4in Thickness: Approx. 1.5cm/ 0.6in Weight: Approx. 197g / 7oz. Package List: 1 x Soil Moisture Sensor1 x Instruction Note: Please allow 1-3cm error due to manual measurement. Thanks for your understanding.