The soil multi-parameter sensor is designed to monitor key soil conditions including moisture, temperature, electrical conductivity (EC), pH, and NPK in real time. It provides reliable data support for irrigation decision-making, helping farms reduce water consumption, optimize fertilizer usage, and improve crop yield.
With standard RS485 Modbus communication, the sensor can be easily integrated into smart irrigation systems, greenhouse automation, and agricultural IoT platforms. It is an essential device for precision agriculture and modern farm management.
This soil sensor is widely used in agricultural environments where accurate soil monitoring is required, such as large-scale farms, greenhouse systems, orchards, and irrigation projects. By continuously collecting soil data, it enables users to adjust irrigation strategies based on real conditions, improve water efficiency, and reduce unnecessary fertilizer input.
This sensor integrates multiple soil parameters into one compact device, allowing simultaneous monitoring of soil moisture, temperature, EC, pH, and nutrient levels. Compared with traditional single-function sensors, it reduces installation complexity and overall system cost.
The device is designed for long-term outdoor use with low power consumption and supports a wide voltage input range of DC 5–30V. Its probe is made of corrosion-resistant materials, ensuring stable performance in different soil environments. With an IP68 protection rating, the sensor can operate reliably under wet and harsh field conditions.
It also supports RS485 output with Modbus protocol, making it easy to connect with irrigation controllers, data loggers, and cloud platforms for real-time data transmission and remote monitoring.
| Soil Parameter | Measurement Range | Resolution | Accuracy | Remarks |
|---|---|---|---|---|
| Soil Temperature | -40°C to 80°C | ±0.1°C | ±0.5°C | — |
| Soil Moisture (Volumetric Water Content) | 0–60% | 0.1% | ±3% | Moisture readings may be lower and less accurate when measuring frozen soil layers. Manual compensation may be required. |
| Electrical Conductivity (EC) | 0–20,000 μS/cm | 1 μS/cm | ±5% | — |
| Salinity | 0–10,000 mg/L | 1 mg/L | ±5% | — |
| pH | 3–10 pH | 0.1 pH | ±0.3 pH | — |
| NPK (Nitrogen, Phosphorus, Potassium) | 0–2,000 mg/kg | 1 mg/kg | ±2% FS | — |
Note:
For EC, salinity, NPK, and other measurements exceeding the specified accuracy range above, the measurement error may increase. However, the data can still be used for trend analysis and reference purposes.
To ensure accurate measurement, the probe should be fully inserted into the soil with good contact. When measuring EC, pH, and NPK, the soil should maintain sufficient moisture; otherwise, the data may be inaccurate. After insertion, allow a few minutes for readings to stabilize.
The probe should be cleaned after use to maintain accuracy and extend its service life. For long-term use in corrosive soil environments, regular maintenance is recommended.
If you are looking for a reliable soil monitoring solution for your irrigation or agricultural project, we can provide customized recommendations based on your specific requirements.
Contact us today to get a quotation and a professional solution tailored to your project.
