Industrial Soil Moisture & Temperature Sensor MODBUS-RTU RS485, 0-2V Analog Voltage (S-Soil MT-02A)
This industrial-grade MODBUS-RTU RS485 Soil Moisture and Temperature Sensor features high accuracy, reliability, stability, and durability. It can be widely used in monitoring soil moisture and soil temperature in professional application scenarios such as water-saving irrigation, greenhouses management, and golf turf management, etc.
Please send an email to sensecap[at]seeed[dot]cc to request any technical support for this product.
High Performance: high accuracy, reliability, and stability
Universal Protocol: MODBUS-RTU RS485
Wide range power supply: 3.6V ~ 30V
Industrial-grade Robustness: IP68 rated, suitable for long-term applications
Strong Anti-interference: made of flame-retardant epoxy resin
High Durability: anti-corrosion, with excellent performance for long-term use
User-friendly: easy to use, install and integrate
Safety: designed with reverse voltage protection
Soil moisture is the water stored in the soil. Too much moisture in the soil is not only bad for the plants but also wastes water and adds extra burdens to our planet earth. Soil temperature is the warmth of the soil. Plants grow best at their preferred temperature ranges. With access to soil moisture and temperature data, we can take actions to make sure the right amount of water is irrigated at the appropriate time, and the plants are in optimal environments which are good for their growth.
|Product Model||S-Soil MT-02A|
|Interface||RS-485||0 - 2V voltage|
|Power Supply||3.6 ~ 30V DC||3.9 ~ 30V DC|
6mA @24V DC
6mA @24V DC
|Operating Temperature||-40℃ ~ +85℃|
|Storage Temperature||-40℃ ~ +85℃|
|Response Time||< 1 second|
A cylinder area(with the probe as the center, diameter: 7cm, height: 7cm)
|Probe Material||Food-grade stainless steel|
|Seal Material||Black flame-retardant epoxy resin|
|Cable Length||5 meters|
|Installation||All buried or probe into the media to be measured|
|Range||-40℃ ~ +80℃|
|Accuracy||± 0.5 ℃|
From completely dry to fully saturated
(from 0% to 100% of saturation)
Horticulture and Gardening
Golf turf Management
Other Environmental Monitoring Scenarios
Please refer to the user manual for more details about the wiring diagram.
|Q:||What exactly is soil moisture measured?|
|A:||Measured is soil volumetric water content, soil volumetric water content %= soil volumetric water content * bulk density|
|Q:||How is soil volume water content measured?|
|A:||By measuring the dielectric constant, and then through a certain calculation formula to convert into soil volume water content.|
|Q:||Why does the measured volume water content of soil not reach 100% in water?|
First of all, the saturated water content of the soil is about 60%, and the measurement of higher water content is not of practical significance.
Second, we need to pay attention to the test environment and method when testing.
7*7*7cm square column range measured by the sensor probe. If water is used for the test, a container of at least 20*20*20cm is required, and the probe is placed in the middle (with water to immerse the probe).
The resulting value will be between 80% and 100%.
|Q:||How to install a soil sensor probe?|
Dig a vertical hole, insert the sensor steel needle into the hole to be measured, and then compacted the pit to ensure that the steel needle is in close contact with the soil.