This soil NPK sensor is designed for accurate measurement of nitrogen (N), phosphorus (P), and potassium (K) levels in the soil. With RS485 communication and IP68 protection, it seamlessly integrates into smart agriculture systems, enabling real-time monitoring and optimized fertilization strategies.
Technical Specifications
| Parameter | Value |
|---|---|
| Power Supply | 5–30V DC |
| Output Signal | RS485 |
| Measurement Range | 0–1999 mg/kg (mg/L) |
| Resolution | 1 mg/kg (mg/L) |
| Accuracy | ±2% F.S. |
| Response Time | ≤1 second |
| Operating Temperature | -40°C to +80°C |
| Operating Humidity | 0–100% RH |
| Protection Grade | IP68 |
| Probe Material | 316 stainless steel |
| Sealing Material | Black flame-retardant epoxy resin |
| Dimensions | 45 × 15 × 123 mm |
| Cable Length | 2 meters (customizable) |
5. Product Advantages
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✅ High-precision measurement of soil nitrogen, phosphorus, and potassium levels
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✅ RS485 communication for reliable data transmission
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✅ IP68 protection for long-term outdoor use
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✅ Durable stainless steel probe resistant to corrosion
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✅ Fast response time suitable for real-time monitoring
6. Application Scenarios
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Smart agriculture and precision farming
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Greenhouse nutrient monitoring
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Soil fertility assessment
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Research and educational purposes
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Integration with automated irrigation system
Integration with PKYDrip System
Fully compatible with PKYDrip’s intelligent irrigation controllers and cloud platform, enabling automated nutrient management and data-driven decision-making.