The Sentec SEM225 soil sensor is a high‑performance instrument designed for continuous monitoring of key soil parameters with robust Modbus RS485 communication, making it suitable for precision agriculture, greenhouse automation, irrigation systems and environmental monitoring.
Key Specifications:
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Soil Temperature: –40 °C to +80 °C, 0.1 °C resolution, ±0.5 °C typical.
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Soil Moisture: 0 %–100 % RH, 0.1 % resolution, ±3 % typical.
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Electrical Conductivity (EC): 0–20000 µS/cm, 1 µS/cm resolution, ±3 % typical.
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Communication: RS485 with Modbus RTU protocol for system integration.
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Protection: IP68 rugged housing for long‑term outdoor burial.
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Power Supply: DC 12‑30 V.
Designed for professional deployments, this sensor integrates seamlessly with controllers, IoT gateways and industrial data acquisition systems supporting Modbus networks.



