Soil NPK Sensor RS485 – Nitrogen, Phosphorus and Potassium Soil Nutrient Sensor

The Soil NPK Sensor RS485 is a high-precision agricultural sensor designed to measure the concentration of essential soil nutrients: Nitrogen (N), Phosphorus (P), and Potassium (K). Featuring an industrial-grade RS485 interface with Modbus-RTU protocol, the sensor enables real-time monitoring of soil fertility for precision agriculture, smart irrigation, and greenhouse automation systems.

Key Features

• Simultaneous measurement of Nitrogen (N), Phosphorus (P), and Potassium (K)
• Industrial RS485 communication interface
• Supports Modbus-RTU communication protocol
• High measurement accuracy and stability
• IP68 waterproof and dustproof enclosure
• Corrosion-resistant probe for long service life
• Suitable for long-distance data transmission
• Low power consumption
• Easy integration with PLCs, Arduino, ESP32, and industrial controllers

Technical Specifications

Applications

• Precision Agriculture
• Smart Farming Systems
• Greenhouse Monitoring
• Hydroponics and Soil Research
• Agricultural IoT Solutions
• Soil Fertility Assessment
• Automatic Irrigation Systems
• Environmental Monitoring

Important Notes

• Designed for insertion into soil for nutrient analysis.
• Use a regulated DC power supply between 9V and 30V.
• Communication is based on Modbus RTU over RS485 interface.
• Avoid excessive mechanical impact on the probe.
• Clean the sensor probe after prolonged use to maintain accuracy.
• Calibration may be required depending on soil type and application.