RS485 Modbus Soil Sensor, up to 7-in-1: Moisture, Temperature, EC, pH and NPK

Important Reminder The measurement of NPK adopts the general rapid detection method, so there are certain error, Use with caution for planting reference. The existing electronic measuring method cannot accurately measure NPK, the error is big, sensor only show trend of NPK. RS485 Modbus Soil Sensor 7 in 1 Measure Soil Moisture Temperature Humidity EC PH NPK it is for soil temperature and moisture, PH, conductivity (EC),measurement, compared with the original German high-precision sensors and soil drying method of weighing the actual calibration, high precision, fast response, stable output. By the soil salt content of small, suitable for all kinds of soil. Long-term buried in the soil, resistant to long-term electrolysis, corrosion resistance, vacuum potting, completely waterproof. Soil parameters measuring Measure items Parameters Temperature Ÿ Measuring range: -40 ℃ -80 ℃ Ÿ Accuracy: ±5 ℃ (25 ℃ ) Ÿ Long-term stability: ≤0.1% ℃ /y Ÿ Response time: ≤15s Humidity Ÿ Measuring range: 0-100%RH Ÿ Accuracy: 2% within 0-50%, 3% within 50-100% Ÿ Long-term stability: ≤1%RH/y Ÿ Response time: ≤4s Conductivity (EC) Ÿ Measuring range: 0-20000us/cm Ÿ Accuracy: ±3% (0-10000 us/cm); ±5% (10000-20000 us/cm) Ÿ Long-term stability: ≤1%uS/cm Ÿ Response time: ≤1s PH Ÿ Measuring range: 3-9 PH Ÿ Accuracy: ±0.3PH Ÿ Long-term stability: ≤5%/year Ÿ Response time: ≤10S Nitrogen Phosphorus Potassium Ÿ Measuring range: 1-1999 mg/kg(mg/L) Ÿ Resolution ： 1 mg/kg(mg/L) Ÿ Response time: ＜ 1S Basic parameters Power supply DC4.5-30V Max Power consumption 0.5W@24V DC Protection class IP68, long-term immersion in water use Cable length Default is 2m (can be customized) Operating environment -40 ℃ -80 ℃ Overall dimensions 45 • 15 • 123mm Output RS485/4-20mA/0-5V/0-10V Functions and Features (1) The sensor compact design, easy to carry, installation, operation and maintenance. (2) reasonable structure design, stainless steel probe life assurance. (3) soil less affected areas are widely used. (4) High measurement accuracy, reliable performance, ensure proper operation (5) fast response, high data transmission efficiency. Applicable to the field of water-saving irrigation, greenhouse vegetables, flowers, gardening, grass pastures, soil-speed measurement, plant cultivation, scientific testing.