Soil NPK Sensor (Nitrogen-Phosphorus-Potassium) Fertility & Nutrient Measurements

From the shop's description

The soil nutrient content can be easily measured using NPK Soil Sensor. Measurement of soil content N (nitrogen), P (phosphorus), and K (potassium) is necessary to determine how much additional nutrient content is to be added to soil to increase crop fertility. The soil fertility is detected using NPK sensors. A major component of soil fertilizer is nitrogen, phosphorus, and potassium. The knowledge of the soil nutrient concentration can help us to learn about nutritional deficiency or abundance in soils used to endorse plant production. This Soil NPK sensor is a low cost, quick responsive, high precision & portable Sensor that works with Modbus RS485. The advantage of this sensor over a traditional detection method is that it gives very fast measurement & data are highly accurate. All you need is to insert its probe in soil and get the reading using your MCU (Arduino, Tiva C, Raspberry, Personal computer). Features Supply Voltage: 5 - 30V Measurements Range: 1-999 mg/Kg Measurements Accuracy: 1 mg/Kg Output Signal: RS485 Protection : IP68 Response Time : ≤ 1 sec NPK Soil Sensor user manual Commix 1.4 Modbus RS485 communication software