Feature:1. The soil comprehensive sensor creatively measures the seven parameters of conductivity, moisture, temperature, ph, and nitrogen, phosphorus and potassium, which greatly facilitates your systematic assessment of soil conditions.2. The sensor has high accuracy, quick response, stable output, and is less affected by the salt content of the soil. It is suitable for all kinds of soil.3. It can be buried in the soil for a long time, is resistant to longterm electrolysis and corrosion, and uses highdensity epoxy resin for vacuum potting, which can prevent moisture from entering the inner of the fuselage and has good sealing performance.4. The probe is made of special metal material, which is resistant to rust, electrolysis, and saltalkali corrosion, ensuring the longterm operation of the probe part.5. It is suitable for scientific experiments, watersaving irrigation, greenhouses, flowers and vegetables, grassland pastures, soil rapid testing, plant cultivation, sewage treatment, grain storage, and measurement of various particulate water content and temperature.Specification:Condition: 100% Brand NewItem Type: Soil SensorMaterial: Plastic+Steel+EpoxyColor: As shown in the pictureSize: Approx.13.8x4.5cm/5.4x1.8inWeight: Approx.290g/10.2ozPower Supply: 12-24V DCOutput Signal: RS485Temperature Measurement Range: -40-80Temperature Accuracy: 0.5Temperature Resolution: 0.1Moisture Measurement Range: 0-100%Moisture Accuracy: 3% within the range of 0-53%; 5% within the range of 53-100%Moisture Resolution: 0.10%Conductivity Measurement Range: 0-10000us/cmConductivity Resolution: 10us/cmpH Measurement Range: 3-9pHpH Measurement Accuracy: 0.3pHpH Resolution: 0.01pHMeasuring Range of Nitrogen, Phosphorus and Potassium: 0-1999mg/kgNPK Measurement Accuracy: 2%F.sResolution of NPK: 1mg/kg (mg/l)Storage Environment: -20-60Working Pressure Range: 0.9-1.1atmResponse Time: <1sProtection Level: IP68Installation Method: All buried or all probes inserted into the measured mediumPrecautions:1. All steel needles must be inserted into the soil during measurement.2. Avoid strong sunlight directly shining on the sensor and cause excessive temperature. Pay attention to lightning protection in the field.3. Do not bend the steel needle violently, pull the lead wire of the sensor forcefully, and do not hit or hit the sensor violently.4. The sensor's protection grade is IP68, so the entire sensor can be soaked in water.5. Due to the existence of radio frequency electromagnetic radiation in the air, it is not suitable to stay in the air for a long time with electricity.6. Please be careful not to connect the wrong wiring sequence, the wrong wiring will cause the equipment to burn..Package List:1 x Soil Sensor1 x Manual Note:1. Please allow 1-2cm 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.