Soil NPK Sensor & Nutrient Testing Meter
The Soil NPK sensor is an advanced industrial device designed to measure Nitrogen, Phosphorus, and Potassium with high precision. It automates fertilizer management, optimizes crop planning, and enhances soil fertility analysis for modern farming.
NPK
MacronutrientsIP68
Weatherproof
SunBio Standalone Soil NPK Sensor Device
The Soil NPK sensor device is an advanced industrial-grade soil nutrient testing meter engineered to measure primary agricultural macronutrients - Nitrogen (N), Phosphorus (P), and Potassium (K) - with high precision and efficiency. Designed explicitly for modern farming, agronomists, agricultural researchers, and greenhouse consultants, this IoT soil sensor automates fertilizer management, improves crop planning, and enhances soil fertility analysis.
Real-Time NPK
Instantaneous, highly accurate readings of soil N, P, and K.
Multi-Parameter
Simultaneously logs N, P, and K metrics for soil health.
IP68 Enclosure
Corrosion-resistant electrodes for subterranean conditions.
RS485 Modbus
Effortless connection to IoT gateways and PLCs.
SunBio Handheld Soil NPK Sensor Device
The portable SunBio Handheld Soil NPK Sensor brings lab-grade soil testing directly to the field. Ideal for rapid crop consultants and agricultural extension agents, it delivers instant readings of nitrogen, phosphorus, and potassium backed by robust cloud connectivity and automated mobile alerts.
24/7 Monitoring
Continuous tracking with instant SMS and push alerts.
Dashboards
Interactive mobile and web portals for remote insights.
Data Analytics
Trend reporting and CSV data export capabilities.
Cloud Native
Seamless integration with Microsoft Azure and AWS IoT.
Applications & Use Cases
Empowering precision agriculture, commercial greenhouses, and agronomical research.
Precision Agriculture
Optimizing fertilizer application schedules and maximizing crop yields through accurate nutrient telemetry.
Commercial Greenhouses
Real-time soil nutrient tracking in controlled horticulture and floriculture setups.
Agronomic Research
Field trials and long-term soil fertility management studies backed by empirical data.
Sustainable Farming
Implementations designed to prevent fertilizer runoff and ecological degradation.
Data-Driven Planning
Rotational farming utilizing live IoT sensor telemetry for optimal soil health.
Orchards & Plantations
Comprehensive soil health assessments across tea plantations, orchards, and landscape gardens.
Technical Specifications
Power Supply
DC 5-24V
Power Consumption
Approx. 15mA @12V DC
Communication Protocol
RS485 with Modbus RTU
Interface Compatibility
Multi-node PLC/Arduino/ESP32 deployment
Operating Temperature
0°C to 55°C
Protection Level
IP68 Waterproof Rating
Frequently Asked Questions
Detailed technical answers and clear explanations for agronomists and farmers
The SunBio Soil NPK Sensor measures primary agricultural macronutrients - Nitrogen (N), Phosphorus (P), and Potassium (K) - delivering instantaneous and highly accurate readings to optimize fertilizer dosing and maximize harvest output.
The sensor is equipped with an RS485 communication interface and Modbus RTU protocol, supporting effortless connection to IoT gateways, data loggers, and PLC, Arduino, or ESP32 architectures via bus topology.
Yes, the sensor features an IP68 weatherproof enclosure built with corrosion-resistant electrodes designed to withstand rigorous subterranean and open-field environmental conditions.
The Standalone NPK sensor is engineered for fixed industrial RS485 Modbus integration into automated architectures, whereas the Handheld model brings portable, lab-grade testing directly to the field with cloud connectivity and mobile alerts.
By providing instantaneous readings of soil nutrient distribution, it allows agronomists and farmers to apply precise fertilizer schedules, prevent nutrient runoff, and enhance overall soil fertility and crop health.
The sensor operates on a DC 5-24V power supply with an approximate consumption of 15mA at 12V DC, and functions reliably across an operating temperature range of 0°C to 55°C.