Model recommendation: TH-WSY485We are a manufacturer of meteorological and environmental monitoring instruments and equipment. Yunjing Tianhe supports customized services for merchants. You can rest assured that our equipment is selected from Shandong Yunjing Tianhe. Soil temperature, humidity, and salt sensors - understand the operation mechanism of soil ecosystems and provide basic data support for scientific researchSoil temperature, humidity, and salt sensor is a professional device that can simultaneously monitor soil temperature, humidity, and salt content. Temperature measurement usually uses temperature sensors such as thermistors or platinum resistance thermometers to reflect changes in soil temperature by measuring changes in resistance values. Thermistors have the characteristics of high sensitivity and wide measurement range, but their long-term stability may be affected by temperature fluctuations; Platinum resistance thermometers have the advantages of accurate measurement and good stability, but their prices are relatively high. Humidity measurement is based on the relationship between the electrical properties of soil and humidity. Common methods include dielectric constant method and frequency domain reflectometry (FDR). The dielectric constant method reflects the moisture content by measuring the changes in the dielectric constant of the soil; The frequency domain reflection method determines the moisture content by measuring the capacitance changes of soil at different frequencies. These methods can directly and stably reflect the true moisture content of various soils, with high measurement accuracy and fast response speed. Salt measurement determines salt content by measuring the ion conductivity in soil solution. The sensor passes current through the soil solution and measures the change in voltage to reflect the conductivity of the soil. Conductivity is related to the salt content and ion activity in soil, and can indirectly reflect the salt content of soil.

1、 Technical indicators

1. Power supply: DC12V

2. Power consumption: less than 0.1W

3. Working temperature: -30~70 ℃

4. Communication interface: RS485

5. Working current: 8mA DC12V

6. Shortest data interval: 60 seconds

2、 Product dimension diagram

3、 Precautions for use

1. The installation of sensors should be strictly carried out in accordance with the installation and use instructions.

When multiple sensors are working simultaneously, they must be spaced at least 5 meters apart.

3. The measurement principle of the sensor is limited, and there should be no electromagnetic cables or strong magnetic radiation interference within a 5-meter radius of the sensor's measurement location,

Avoid causing significant errors and damage to sensor measurements.

4. The installation environment of the sensor should comply with the measurement range of the sensor and avoid non-standard behaviors such as exceeding the range.

5. Sensor installation should avoid environments with strong acids, strong alkalis, heavy oil pollution, and heavy metals.

6. The sensor is a soil measurement sensor, and it is prohibited to use this sensor for other purposes.

7. The sensor installation environment should not have strong vibrations.

8. The sensor should not be subjected to excessive external forces.

9. Disassembly is prohibited. Unauthorized disassembly will not provide any services.

10. The sensor probe is relatively sharp, so please wear protective gear according to regulations when using it.

11. Equipment use and maintenance should be strictly carried out in accordance with the above precautions. If there is any violation of usage, our company will not be held responsible

4、 Sensor parameters