JXCT Soil NPK Sensor 5V RS485:

The JXCT Soil NPK Sensor (5V RS485) is a high-precision, industrial-grade sensor designed to measure the three essential soil nutrients—Nitrogen (N), Phosphorus (P), and Potassium (K)—directly and in real time. Built with rugged waterproof housing and reliable digital communication via RS485 MODBUS-RTU, this sensor is perfect for agricultural automation, smart farming, greenhouse systems, and soil research.Whether you’re a farmer, agri-tech developer, or researcher, this sensor helps optimize fertilizer use and boost crop yields by providing accurate soil nutrient data on the spot.

How It Works

The sensor emits a signal to detect ion concentrations corresponding to N, P, and K in the soil. These values are sent digitally over the RS485 interface and can be interpreted using microcontrollers, data loggers, or industrial gateways.

Readings are returned in mg/kg (ppm) and allow farmers or systems to adjust fertilizer doses precisely based on real-time soil nutrition levels.

The sensor communicates via standard MODBUS-RTU, allowing easy integration into:

• Arduino/ESP32 (via RS485 module)

• PLCs and industrial systems

• Raspberry Pi using USB-RS485 adapters

• Node-RED, MQTT, and cloud dashboards

Installation Tips

• Insert the probe vertically into the soil at root level (10–20cm depth)

• Avoid large rocks or debris for better sensor-soil contact

• Ensure full contact between probe and moist soil

• Clean after use if soil is high in salts or chemicals

Applications 

• Smart Agriculture

• Greenhouse & Precision Farming

• Soil Research & Environmental Studies

• Irrigation and Fertilizer Control Systems

• IoT-based Crop Monitoring Projects

• Urban Farming & Hydroponic Soil Monitoring