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Soil NPK sensor for agriculture is designed for accurate monitoring of soil nutrient levels, including nitrogen, phosphorus, and potassium (1-1999 mg/kg). It features an RS485 output interface for real-time data transmission and an IP68-rated waterproof housing for reliable outdoor use. The NPK sensor operates with solar power, offering sustainable and maintenance-free performance. Built with a 316 stainless steel probe and epoxy resin vacuum sealing, it provides excellent corrosion resistance, no electrolysis, and long-term stability, making it ideal for precision agriculture and smart farming systems.
Quick Measurement Method:
Select an appropriate measurement location and avoid rocks or hard objects. Dig the surface soil according to the required measurement depth, keeping the underlying soil loose. Firmly insert the sensor vertically into the soil. Avoid shaking or twisting during insertion. For more accurate results, take multiple measurements within a small area and calculate the average value.
Buried Measurement Method:
Dig a vertical hole with a diameter greater than 20 cm. Insert the sensor horizontally into the soil wall at the desired depth. Refill and compact the soil to ensure firm contact between the probe and soil. After the sensor stabilizes for a period, it can be used for continuous monitoring and recording over several days or months.
The sensor uses electrochemical and digital sensing technology to detect nutrient ion concentrations in the soil. The data is then transmitted via the RS485 interface using the ModBus-RTU protocol for analysis or monitoring.
The sensor should be inserted vertically into the soil, ensuring full contact between the stainless steel probe and the soil. Avoid stones and hard objects during installation to prevent damage and ensure accurate readings.
Yes. The sensor can easily integrate into smart farming and IoT systems for automated fertilizer management, soil condition tracking, and remote agricultural monitoring.
