Soil Moisture and Temperature Sensor RS485 Modbus (2-in-1)
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Prices updated: 12 Oct 2026
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About this product
A 2-in-1 soil probe that measures soil moisture and soil temperature, with output over RS485 using the Modbus protocol. It is designed to stay buried in soil for long periods and is fully waterproof with corrosion-resistant construction, making it suitable for irrigation, greenhouse and field monitoring connected to a microcontroller or PC.
Specifications
- Supply voltage
- 5 - 24 V
- Communication
- Modbus RS485
- Measurements
- Soil moisture and soil temperature
- Waterproofing
- Completely waterproof, corrosion resistant
- Soil suitability
- Various soil types, less affected by soil salinity
Frequently asked questions
How do I connect it to an Arduino?
Wire the sensor's power (5 to 24 V), GND, and the A and B RS485 lines to an RS485 transceiver such as a MAX485 module, connected to the Arduino's serial pins. Then read the Modbus registers from your code. Register addresses are defined in the vendor's manual.
Is the sensor affected by soil salinity?
According to the store description, the sensor is less affected by soil salinity and is suitable for various soil types. It can remain buried in soil for a long time.
