Soil Temperature Moisture Salt Sensor

1.Soil Temperature Moisture Salt Sensor Product Introduction

Soil Temperature Moisture Salt Sensor can measure the soil moisture, soil temperature and conductivity at the same time, which is a high-precision soil equipment.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-salt dynamics of saline soil. By measuring the dielectric constant of the 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 meets the current international standards. It is suitable for soil moisture monitoring, scientific experiments, water-saving irrigation, greenhouses, flowers and vegetables, grasslands, soil rapid testing, plant cultivation, sewage treatment, precision agriculture and other occasions.

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

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

(2) It can also be used for the conductivity of water-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 impact and are not easily damaged.

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

(5) High precision, fast response, good interchangeability, and probe insertion design ensure accurate measurement and reliable performance.

3. Soil Temperature Moisture Salt Sensor Wiring

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

4. Soil Temperature Moisture Salt Sensor 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 soluble ions in the soil can correctly reflect the conductivity of the soil only when the soil volume moisture content is higher than about 20%. In long-term observation, the measured value after irrigation or rainfall is closer to the actual level. If a quick test is performed, water the soil to be tested first, 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 up the topsoil according to the required measurement depth, maintain the original tightness of the soil below, hold the sensor body firmly and insert it vertically into the soil. Do not shake it back and forth or left and right during insertion to ensure close contact with the soil. It is recommended to measure multiple times within a small range of a measurement point to obtain the average.

(2) Buried measurement method: According to the required depth, dig a pit with a diameter greater than 20 cm vertically, and the depth is based on the measurement requirements. Then, insert the sensor steel needle horizontally into the pit wall at the predetermined depth, fill and compact the pit, and ensure that the electrode is in close contact with the soil. After a period of stability, continuous measurement and recording can be carried out for several days, months or even longer.

If measuring on a hard surface, you should first drill a hole (the hole diameter should be smaller than the probe diameter), then insert it into the soil and compact the soil before measuring; the sensor should be protected from severe vibration and impact, and should not be hit with hard objects. Since the sensor is packaged in black, it will heat up rapidly under strong sunlight (up to 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

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