Seeed RS485 Specifications
RS485 Soil Moisture & Temperature & EC Sensor
Features
Moisture / Temperature / EC all in one
High reliability and stability
Universal protocols: MODBUS RS-485
Wide range power supply: 3.6V ~ 30V
IP68 rated, suitable for long-term applications
Can be used in soil, water, nutrient solution, and other substrates
Strong Anti-interference: made of ame-retardant epoxy resin
Anti-corrosion, with excellent performance for long-term use
Easy to use, integrate and install
Applications
Agriculture irrigation
Green house
Grass farm
Environment monitoring
Soil testing
Other Sensor Applications
Introduction
This Soil Moisture & Temperature & EC Sensor MODBUS-RTU RS485 (S-Soil MTEC-02A) is designed with industry standards, featuring
high precision and high sensitivity and durability. Incorporating three sensors (soil moistures sensor, soil temperature sensor, and soil
electrical conductivity) into one, with auto temperature compensation, this sensor ensures the accuracy of measurements regardless of
the environment changes. By measuring the dielectric constant of the soil, it can stably measure the soil VWC (volumetric water content)
regardless of various soil types. The measurement conforms to current international standards for soil moisture measurement.
The stainless steel probe can be permanently inserted in the soil with quick testing for long-term use. This soil sensor is IP68 rated, very
robust and durable, suitable to be applied at long-term monitoring of soil moisture, temperature and electrical conductivity at scientic
experiments, water-saving irrigation, gardening, greenhouses, outdoor farming, horticulture, golf turf management, forestry, precision
agriculture, and other professional environmental monitoring scenarios. It can also be applied in the water, nutrient solution, and other
kinds of substrates where EC level is needed.
Specications
General Parameters
Product Model S-Temp&VWC&EC-02A
Interface RS-485
Protocol MODBUS-RTU RS485
Power Supply 3.6 ~ 30V DC
Current Consumption
Operating Temperature -40 ℃ to +85
The material of the probe Anti-corrosion special electrode
Sealing Material Black ame retardant epoxy resin
IP Rating IP68
Cable Length 5 meters
Installation
Device Weight 210g
6mA@24V DC
(quiescent dissipation)
℃
All embedded or probe inserted into
the measured medium
Soil Temperature
Range -40 ℃ to +80
Accuracy ±0.5
Resolution 0.1
Soil Moisture
Range
Accuracy
Resolution
Electrical Conductivity
Range 0 ~ 10000 μs/cm
Accuracy ±3%
Resolution 10 μs/cm
Temperature
Compensation
℃
℃
From completely dry to fully saturated
(from 0% to 100% of saturation)
±2% (0~50%)
±3% (50~100%)
0.03% (0~50%)
1% (50~100%)
Built in temperature compensation
sensor, range 0-50
℃
℃
RS485 Soil Moisture & Temperature & EC Sensor
Probe DimensionsWiring Diagram
Refer to the user manual for more details.
Website: www.seeedstudio.com
Email: iot@seeed.cc
Phone: +86 755 3653 4305
Address：F9, Building G3, TCL International E City, Zhongshanyuan Road, Nanshan District, Shenzhen, China.
© 2008-2020 Seeed Technology Co., Ltd. All rights reserved.
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