Soil NPK Sensor & Nutrient Testing Meter

Soil NPK Testing Device Thumb 1 Soil NPK Sensor Video Demonstration
SunBio Standalone Soil NPK Sensor

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.


Key Features

Real-Time NPK Measurement:

Delivers instantaneous, highly accurate readings of soil Nitrogen, Phosphorus, and Potassium to optimize fertilizer dosing and maximize harvest output.

Multi-Parameter Soil Analysis:

Simultaneously logs N, P, and K metrics to provide a comprehensive evaluation of soil health and macro-nutrient distribution.

Weatherproof IP68 Enclosure:

Built with corrosion-resistant electrodes and an IP68-rated housing to withstand rigorous subterranean and open-field environmental conditions.

Industrial RS485 Modbus Integration:

Equipped with an RS485 communication interface and Modbus RTU protocol for effortless connection to IoT gateways, data loggers, and PLC automation architectures.

Handheld Soil NPK Meter Thumb Soil Testing Device View Video Demonstration Thumb
SunBio Handheld Soil NPK Sensor

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.


Key Features

  • 24/7 continuous soil monitoring with instant SMS and push alerts

  • Interactive mobile and web dashboards for remote agronomy insights

  • Advanced historical data analytics, trend reporting, and CSV data export

  • Seamless cloud platform integration with Microsoft Azure and AWS IoT

  • Rechargeable battery backup ensuring uninterrupted field operation

Technical Specifications


  • Power Supply:

    DC 5-24V

  • Power Consumption:

    Approx. 15mA @12V DC

  • Communication Protocol:

    RS485 with Modbus RTU

  • Interface Compatibility:

    Supports RS485 bus topology for multi-node PLC/Arduino/ESP32 deployment

  • Operating Temperature:

    0°C to 55°C

  • Protection Level:

    IP68 Waterproof Rating

Applications


  • Precision agriculture for optimizing fertilizer application schedules and maximizing crop yields

  • Real-time soil nutrient tracking in commercial greenhouses, horticulture, and floriculture setups

  • Agronomic research and field trials focused on long-term soil fertility management

  • Sustainable farming implementations designed to prevent fertilizer runoff and ecological degradation

  • Data-driven crop planning and rotational farming utilizing live IoT sensor telemetry

  • Comprehensive soil health assessments across orchards, tea plantations, and landscape gardens

Web & Mobile Dashboard UI/UX

Our cloud-connected web and mobile software platforms display live soil conductivity, temperature, and NPK metrics. Designed for usability, they empower modern farmers, agronomists, and researchers to make informed fertilizer decisions from any device, anywhere.

SunBio Web Dashboard UI for Soil Analytics
Cloud Web Dashboard

Access advanced data visualizations, automated trend analysis, and exportable agronomy reports.

SunBio Mobile App UI for Field Alerts
Agronomy Mobile App

Stay updated on the field with instant push alerts, live sensor readings, and historical tracking.