Soil Temperature Moisture Salt Sensor

1. Product introduction of Soil Temperature Moisture Salt Sensor

Soil Temperature Moisture Salt Sensor provides continuous, stable and accurate measurement of the three most important soil parameters: moisture, salinity and temperature.FT-WSY485Soil Temperature Moisture Salt Sensor has stable performance and high sensitivity. It is an important tool for observing and studying the occurrence, evolution, improvement and water and salt dynamics of saline soil. By measuring the dielectric constant of soil, it can directly and stably reflect the true moisture content of various soils. The soil moisture sensor can measure the volume percentage of soil moisture and is a soil moisture measurement method that complies with current international standards. It is suitable for soil moisture monitoring, scientific experiments, water-saving irrigation, greenhouses, flowers and vegetables, grassland pastures, rapid soil testing, plant cultivation, sewage treatment, precision agriculture and other occasions.

2. Soil Temperature Moisture Salt Sensor has the following characteristics:

(1) The three parameters of soil moisture content, electrical conductivity and temperature are integrated into one.

(2) It can also be used to determine the conductivity of integrated water and fertilizer solutions, as well as other nutrient solutions and substrates.

(3) The electrodes are made of specially treated alloy materials, which can withstand strong external impacts and are not easily damaged.

(4) Completely sealed and resistant to acid and alkali corrosion, it can be buried in the soil or directly put into water for long-term dynamic testing.

(5) High accuracy, fast response and good interchangeability. The probe insertion design ensures accurate measurement and reliable performance.

3. Soil Temperature Moisture Salt Sensor sensor wiring

model	Wiring diagram
RS485 interface Modbus protocol	Red (V+): Power supply positive Black (G): Power ground Yellow (T+): RS485+/A/T+ White (T-): RS485-/B/T-

4. Soil Temperature Moisture Salt Sensor appearance dimensions, selection and ordering

5. Installation and measurement of Soil Temperature Moisture Salt Sensor

Since the electrode directly measures the conductivity of soluble salt ions in the soil, the soil volume moisture content needs to be higher than about 20% in order for the soluble ions in the soil to correctly reflect the conductivity of the soil. In long-term observations, measured values after irrigation or rainfall are closer to the true level. If you want to perform a quick test, you can first water the soil to be measured, and then measure after the water has fully penetrated.

(1) Quick measurement method: Select a suitable measurement location, avoid stones, ensure that the electrode does not touch hard objects such as stones, dig out the topsoil according to the required measurement depth, and maintain the original tightness of the soil below. , hold the sensor body firmly and insert it vertically into the soil. Do not rock back and forth, left or right when inserting, to ensure close contact with the soil. It is recommended to measure multiple times within a small range of a measuring point and average it.

(2) Buried measurement method: According to the required depth, vertically dig a pit with a diameter greater than 20 cm to the depth required for measurement, then insert the sensor steel needle horizontally into the pit wall at the established depth, fill the pit and compact it to ensure that the electrode is in contact with the ground. Soil in close contact. After stabilizing for a period of time, measurements and recordings can be made for days, months or even longer.

If you are measuring on a harder surface, you should first drill a hole (the hole diameter should be smaller than the diameter of the probe), then insert it into the soil and compact the soil before measuring; the sensor should be protected from severe vibration and impact, and it should not be hit with hard objects. Since the sensor is encapsulated in black, strong sunlight will cause the sensor to heat up rapidly (up to more than 50°C). In order to prevent excessive temperature from affecting the temperature measurement of the sensor, please pay attention to sunshade and protection when using it in the field or outdoors. .

6. Soil Temperature Moisture Salt Sensor soil conductivity, temperature and output conversion