Note
Version 1 of this soil sensor supports the RS485 protocol, which is now retired, and replaced by this current one: Version 2, supporting RS485 protocol and 0~2V analog voltage. If your purchase the product before April 2021, it's version 1, and please refer to user manual V1.0; else, please refer to user manual V2.0.
This Industrial Soil Moisture & Temperature Sensor comes in two versions. The main difference is in the cable connector. Please choose the version that best suits your needs:
(1) S-Soil MT-02B: with a waterproof aviation connector. This version saves you time in deployment as you won't have to use screws to connect the cable to the data logger. And it can be used with SenseCAP Sensor Hub 4G Data Logger instantly with ease.
(2) S-Soil MT-02A: with hook-up wires.
Note
Please send an email to sensecap[at]seeed[dot]cc to request any technical support for this product.
Features
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.
This Soil Moisture & Temperature Sensor MODBUS-RTU RS485 (S-Soil MT-02B) is designed with industry standards and comes with a waterproof aviation connector. It incorporates two sensors (soil moisture sensor and soil temperature sensor) into one, featuring high precision and high sensitivity. 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.
This soil sensor is IP68 rated, very robust and durable, suitable to be applied at long-term monitoring of soil moisture and temperature at scientific experiments, water-saving irrigation, greenhouses, outdoor farming, gardening, precision agriculture, and other professional environmental monitoring scenarios.
Specifications
General Parameters
Product Model S-Soil MT-02A
Interface RS-485 0 - 2V voltage
Protocol MODBUS-RTU RS485 -
Power Supply 3.6 ~ 30V DC 3.9 ~ 30V DC
Current Consumption
6mA @24V DC
6mA @24V DC
Operating Temperature -40? ~ +85?
Storage Temperature -40? ~ +85?
Response Time < 1 second
Measuring Area
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
IP Rating IP68
Cable Length 5 meters
Installation All buried or probe into the media to be measured
Device Weight 270g
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
±3% (0~53%)
±5% (53~100%)
Resolution
1%
Applications
Water-saving irrigation
Scientific Experiments
Greenhouse Management
Horticulture and Gardening
Golf turf Management
Smart Agriculture
Other Environmental Monitoring Scenarios
Wiring Diagram
Note
Please refer to the user manual for more details about the wiring diagram.
Probe Dimensions
