Soil NPK Sensor with RS485 Communication
General Specifications
- Model: Soil NPK RS 485 Sensor
- Type: Multi-parameter Soil Sensor
- Communication Interface: RS 485 (Modbus RTU Protocol)
- Power Supply: DC 5V-12V
- Operating Temperature: -40°C to 85°C
- Humidity Range: 0% to 100% RH
- Dimensions: Varies by manufacturer (typically around 100mm x 50mm x 25mm)
Measurement Parameters
- NPK (Nitrogen, Phosphorus, Potassium)
- Measurement Range:
- Nitrogen: 0-2000 mg/kg
- Phosphorus: 0-2000 mg/kg
- Potassium: 0-2000 mg/kg
- Resolution: 1 mg/kg
- Accuracy: ±5% of reading
- Sensing Technology: Electrochemical or Optical depending on the model
- Measurement Range:
- pH Measurement
- Measurement Range: 0 to 14 pH
- Resolution: 0.01 pH
- Accuracy: ±0.1 pH
- Calibration: Requires calibration with standard buffer solutions
- Temperature Measurement
- Measurement Range: -40°C to 85°C
- Resolution: 0.1°C
- Accuracy: ±0.5°C
- Humidity Measurement
- Measurement Range: 0% to 100% RH
- Resolution: 1% RH
- Accuracy: ±3% RH
Features
- Data Logging: Supports data logging for historical data analysis.
- Real-Time Monitoring: Provides real-time readings for immediate feedback.
- Environmental Protection: Waterproof and dustproof design (IP68 rating).
- Compatibility: Compatible with various agricultural and environmental monitoring systems.
- Calibration: User-friendly calibration process for accurate readings.
- LED Indicators: Status LED for power and communication status.
Physical Specifications
- Housing Material: Durable ABS or PVC
- Weight: Approximately 200g
- Cable Length: The standard cable length is 2 meters; customizable options are available.
Application Areas
- Agriculture: Soil nutrient monitoring for precision farming.
- Environmental Research: Soil analysis for ecological studies.
- Horticulture: Optimizing conditions for plant growth.
- Hydroponics: Managing nutrient levels in soilless systems.
Data Output
- Output Format: RS 485 Modbus RTU protocol; can output data in various formats (e.g., CSV, JSON).
- Sampling Rate: 1 reading per second (adjustable).
Installation and Maintenance
- Installation: Easy installation with a user manual included.
- Maintenance: Regular calibration is recommended; clean sensor electrodes to maintain accuracy.
Power supply |
DC4.5-30V |
Max Power consumption |
0.5W@24V DC |
Protection class |
IP68, long-term immersion in water use |
Cable length |
The default is 2m (can be customized) |
Operating environment |
-40℃-80℃ |
Overall dimensions |
45* 15 * 123mm |
Output |
RS485/4-20mA/0-5V/0-10V |
Soil parameters measuring
Measure items |
Parameters |
Temperature |
Measuring range: -40℃-80℃ Accuracy: ±5℃ (25℃) Long-term stability: ≤0.1%℃/y Response time: ≤15s |
Humidity |
Measuring range: 0-100%RH Accuracy: 2% within 0-50%, 3% within 50-100% Long-term stability: ≤1%RH/y Response time: ≤4s |
PH |
Measuring range: 3-9 PH Accuracy: ±0.3PH Long-term stability: ≤5%/year Response time: ≤10S |
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Thisaru Jayawardhena –
Good product with good price
Thisaru Jayawardhena –
Saheli Liyanage –
Excellent, best price, thanks
Saheli Liyanage –