Seeed Studio Industrial Soil Moisture, Temperature & EC Sensor with MODBUS-RTU RS485

Seeed Studio Industrial Soil Moisture, Temperature & EC Sensor with MODBUS-RTU RS485

• Measures Soil Moisture, Temperature, and EC
• RS485 Output for Reliable Data Transmission
• Durable, Waterproof Design for Outdoor Use
• High Accuracy and Stability
• Easy Integration with Agricultural Systems

VAT Exemption for EU Businesses: Validate Your VAT Number at Cart Page

Prices do not include VAT (Your local VAT & Shipping Cost will be calculated at Checkout)

In stock
Product type:

Product Description

The Seeed Studio MODBUS-RTU RS485 Soil Moisture, Temperature, and EC (Electrical Conductivity) Sensor (S-Soil MTEC-02A) is an industrial-grade device designed for precise monitoring of soil conditions. This sensor is ideal for professional agricultural systems, scientific experiments, environmental monitoring, and other applications where soil condition data are crucial. It integrates three essential measurements into one unit: soil moisture, temperature, and electrical conductivity, with high accuracy, reliability, and durability.

Product Features

  • High Performance: Delivers high accuracy, stability, and reliability in measurements.
  • Compact and Integrated Design: Combines soil moisture, temperature, and EC sensor in one compact unit.
  • Universal Protocol Compatibility: Uses MODBUS-RTU RS-485, a widely accepted communication protocol in industrial and automation systems.
  • Wide Voltage Range: Operates on a power supply range of 3.6V to 30V.
  • Robust and Durable: The device is IP68 rated, making it suitable for long-term use in various soil types and environmental conditions.
  • Anti-Interference Construction: Made with flame-retardant epoxy resin to ensure strong anti-interference capability.
  • Versatile Application: Suitable for use in soil, water, nutrient solutions, and other substrates where EC measurement is required.
  • User-Friendly Installation: Easy to install and integrate into existing systems.
  • Long-Lasting: The sensor is designed for long-term use with anti-corrosion materials and a stainless steel probe.
  • Temperature Compensation: Includes a built-in temperature compensation sensor for accurate readings in varying environmental conditions.
  • Applications: Ideal for water-saving irrigation, greenhouse management, horticulture, golf turf management, smart agriculture, and other environmental monitoring scenarios.

The Seeed Studio MODBUS-RTU RS485 Soil Moisture, Temperature, and EC Sensor is a comprehensive solution for monitoring essential soil parameters, making it a valuable tool for enhancing agricultural productivity and environmental research​.

Product Downloads

General Parameters
Product Model S-Temp&VWC&EC-02A
Interface RS-485
Protocol MODBUS-RTU RS485
Power Supply 3.6 ~ 30V DC
Current Consumption 6mA@24V DC
(quiescent dissipation)
Operating Temperature -40℃ ~ +85℃
Probe Material Anti-corrosion special electrode
Sealing Material Black flame-retardant epoxy resin
IP Rating IP68
Cable Length 5 meters
Installation All buried or probe into the media to be measured
Device Weight 210g
Soil Temperature
Range -40℃ ~ +80℃
Accuracy ± 0.5 ℃
Resolution 0.1℃
Soil Moisture
Range From completely dry to fully saturated
(from 0% to 100% of saturation)
Accuracy ±2% (0~50%)
±3% (50~100%)
Resolution 0.03% (0~50%)
1% (50~100%)
Electrical Conductivity
Range 0 ~ 10000 μs/cm
Accuracy ± 3%
Resolution 10 μs/cm
Temperature Compensation Built-in temperature compensation sensor,
Range: 0-50°C

Shipping Policy

We provide worldwide shipping using reliable tracked
shipping services.

Local Shipments within Cyprus

Shipments in Cyprus are performed usually with ACS Courrier
or AKIS Express. In some cases, we might deliver the products ourselves. A pick-up
option from our locations is also available.

International Shipments

International shipments are performed using Express Airway
Shipping Services. We are currently shipping orders with TNT Express and FedEX.
As soon as your shipment is dispatched you will receive the shipment confirmation
including the shipment tracking number which you can use to track your order
from the shipment provider website.

We dispatch orders within 1-3 workdays after the day of the
order placement. 

General Return Policy

We have a 30-day return policy, which means you have 30 days
after receiving your item to request a return.

To be eligible for a return, your item must be in the same
condition that you received it, unworn or unused, with tags, and in its
original packaging. You’ll also need the receipt or proof of purchase.

To start a return, you can contact us at If
your return is accepted, we’ll send you a return shipping label, as well as
instructions on how and where to send your package. Items sent back to us
without first requesting a return will not be accepted.

For any further information, help and support regarding the
shipping and/or return process you can contact us at:

  • Email:
  • Telephone: +357 22 282828