Multi-Depth Soil Sensor RS485

Multi depth soil moisture sensor adopts FDR principle, according to the electromagnetic wave issued by the monitor in different dielectric coefficients of material frequency changes measured in each soil layer of humidity, the use of high-precision digital temperature sensor, measuring the temperature of each soil layer. Measuring the temperature and humidity of 10cm, 20cm, 30cm, 40cm, 50cm, 60cm soil layer at the same time, it is suitable for long-term and uninterrupted monitoring of representative soil; it can be built-in DTU and lithium battery, and can provide RS485 output, and it can also transmit the data to the Internet of Things data platform through 4G/5G wireless network, and view the data in real time with computer and app, which is convenient and quick, and greatly meets the needs of all aspects of use. It is convenient and quick, which greatly meets the needs of various aspects of use.

This soil temperature and humidity monitor (Multi depth soil moisture sensor) has many advantages such as lightweight, easy to install, easy to use, accurate measurement. The instrument adopts precision sensors and intelligent chips, and is composed of soil moisture sensor, soil temperature sensor, solar power supply and transmission device.

At present, the product is widely used in environmental information monitoring and collection in agriculture, forestry, environmental protection, water conservancy, meteorology and other industry sectors, and also applied to water-saving irrigation, flower gardening, grass pasture, soil quick test, plant cultivation, greenhouse control, fine agriculture and so on, in order to meet the needs of scientific research, production, teaching and other related work.

Multi depth soil moisture sensor product features                            

has the ability to measure moisture and temperature changes in multiple depths, standard nodes: 10cm, 20cm, 30cm, 40cm depth, can be customised 50cm, 60cm depth, real-time monitoring, fast and convenient;

1. It can be customised with different depths and configurations according to different applications;

2. Using special customised PVC plastic pipe, which can prevent aging and is more resistant to corrosion of acid, alkali and salt in the soil;

3. Using epoxy resin as sealing material, it can be immersed in water for a long time without leakage;

4. High measurement accuracy, reliable performance, less affected by the soil texture, suitable for all kinds of soil;

5. With multi-directional anti-wrong connection protection for power line, ground line and signal line;

6. Support RS485 digital output and GPRS wireless network data transmission according to demand;

7. Different power supply options: DC12~24V DC power supply; solar power supply, built-in long-lasting lithium battery continuous power supply, power supply capacity designed to last for 30 days at a time full (active reporting mode, 1 hour to report 1 time);

Multi depth soil moisture sensor technical parameters                           

1) Soil moisture (volumetric moisture content) measurement range: dry soil ~ moisture saturated soil, laboratory measurement accuracy: ± 3%, field measurement accuracy: ± 5%, humidity resolution: 0.1%;

2)Temperature measurement range: -40℃～80℃, measurement accuracy ±0.5℃, temperature resolution: 0.1℃;

3)Power supply: optional adapter DC12~24V wide voltage power supply or built-in lithium battery power supply;

4)Communication mode: RS485 communication, MODBUS communication protocol, (baud rate 9600 can be set, address 0-255 can be set); GPRS wireless communication;

5)Wiring: RS485 output 4-wire system, power positive, power negative, 485+, 485-;

6)Response time: response within 3s after power on;

7)Stabilisation time: about 10s into the stabilisation process after power on;

8)External dimensions: ϕ63mm, the length varies with the measurement depth of the sensor, the standard length is about 1000mm;

9)Sensor measurement principle: FDR frequency domain reflection method;

10)Power consumption: less than 10mA at static, 70 mA at sampling;

11)Operating environment: a 40 ℃ ~ 80 ℃; 0-100% RH;

12)Average trouble-free time: ≥25000h;

13)Sensing range: 99% is read from the outside of the tube within 10cm;

14) Shell protection level: epoxy resin as sealing material, ground part: IP67; below ground: IP68;

Multi-Depth Soil Sensor ( multi depth soil sensor ) is a device used to monitor soil parameters at different depths, which can help farmers, horticulture enthusiasts and researchers to better understand the soil's moisture content, temperature, salinity, etc., so as to achieve intelligent irrigation, optimize fertilizer application programs and agricultural management.

 I. Introduction of Multi-Depth Soil Sensor

Multi-Depth Soil Sensor is usually a probe that can be inserted into the soil, which is able to measure soil parameters such as temperature, humidity, pH, conductivity, etc. at different depth locations. These sensors can be wired or wireless; wireless sensors can transmit data remotely while wired sensors require a physical connection to a data logger or computer.

 II. Working Principle of Multi-Depth Soil Sensor

The working principle of Multi-Depth Soil Sensor usually involves the following steps:

1. Insertion into the soil: the sensor is inserted into the soil, Multi-Depth Soil Sensor usually includes multiple probes, each probe is installed in different depths of the soil, and can monitor soil parameters at multiple depths at the same time.

2. Data Acquisition: The sensor measures physical and chemical properties of the soil at various depth locations. This may include parameters such as soil moisture, temperature, pH, and conductivity.

3. Data transmission: The collected data can be transmitted to a data logger or computer either wired or wirelessly. Wireless sensors typically use sensor networks and wireless communication technologies to transmit data.

4. Data analysis: The collected data is analyzed to assess the health of the soil and to determine if there are nutrient deficiencies, high soil salinity, moisture deficiencies, or other soil problems that may affect crop growth.

 Measurement Principle: Sensors measure soil parameters such as soil moisture content, soil temperature, soil salinity, etc. through different techniques (e.g., resistance, capacitance, frequency domain reflection, etc.).

 Application Scenarios of Multi-Depth Soil Sensor

1. Intelligent irrigation system: According to the moisture content data of soil at different depths, it can precisely control the amount of irrigation water and irrigation time, realize intelligent irrigation management, save water resources and improve crop yield.

2. Soil monitoring and management: Help farmers and horticulture enthusiasts to monitor soil moisture, temperature, salinity and other parameters, and timely adjust fertilizer, irrigation and other management measures to promote plant growth.

3. Soil scientific research: Used for in-depth research on soil in the field of scientific research, to understand the law of change of soil and promote the development of soil science.

4. Soil environment monitoring: Used to monitor the quality of soil environment, such as monitoring the content of pollutants in the soil, to ensure the health of the soil environment. 

In conclusion, Multi-Depth Soil Sensor is an important soil monitoring tool that can realize the monitoring of multi-depth parameters of soil, which provides valuable information about soil health status for agriculture, intelligent irrigation systems, environmental protection, land management and scientific research. As technology advances, these sensors are becoming more accurate and easier to use, increasing the efficiency and effectiveness of soil management.