JW-S2S(Z1) soil moisture temperature sensor is designed for accurate monitoring of volumetric water content and soil temperature in agriculture, greenhouse cultivation, irrigation systems, and environmental monitoring projects. With FDR sensing technology, optional analog and RS485 outputs, and IP68 waterproof protection, it is suitable for long-term field deployment and smart farming integration.
2. Product Overview
This soil moisture temperature sensor is a high sensitivity and high precision solution for measuring soil volumetric water content and temperature. By measuring the dielectric constant of the medium, it reflects actual soil moisture content directly and stably. The sensor is suitable for soil moisture monitoring, scientific experiments, water-saving irrigation, greenhouse cultivation, flowers and vegetables, grassland, plant cultivation, precision agriculture, and various environmental monitoring applications.
Its sealed structure, corrosion-resistant probe design, and optional voltage, current, or RS485 Modbus outputs make it ideal for agricultural IoT systems, irrigation control units, dataloggers, RTUs, PLCs, and cloud-connected smart farming platforms.
Parameters
Model No.
JW-S2S(Z1)
Product Type
Soil Moisture Temperature Sensor
Measurement Principle
FDR
Moisture Range
0 to 50 percent or 0 to 100 percent optional
Moisture Resolution
0.03 percent within 0 to 50 percent and 1 percent within 50 to 100 percent
Moisture Accuracy
2 percent within 0 to 50 percent and 3 percent within 50 to 100 percent
Temperature Range
-40 to 80°C
Temperature Resolution
0.1°C
Temperature Accuracy
±0.5°C
Response Time
Less than 1 second
Output Options
0 to 2V 4 to 20mA RS485 Modbus
Power Supply
3.6 to 30V DC or 12 to 30V DC depending on version
Protection Rating
IP68
Operating Temperature
-40 to 85°C
Probe Material
Anti-corrosion special electrode
Sealing Material
Black flame-retardant epoxy resin
Installation Method
Fully buried or fully inserted into measured medium
Default Cable Length
2 meters customizable
Dimensions
88 × 26 × 68 mm
Probe Length
50 mm
3. Dimension
4. Output Options and Communication
This soil moisture sensor is available with multiple output options for flexible integration into different monitoring systems:
0 to 2V Voltage Output
Suitable for controllers and acquisition devices with voltage input.
4 to 20mA Current Output
Suitable for industrial monitoring systems requiring anti-interference analog transmission.
RS485 Modbus Output
Suitable for PLC RTU datalogger gateway and remote IoT monitoring systems. The manual states the default communication parameters are 9600 bps no parity 8 data bits and 1 stop bit, and parameters such as Modbus address baud rate protocol parity and stop bits can be adjusted.
5. Application Scenarios
This sensor is widely used in:
Precision irrigation systems
Greenhouse and tunnel farming
Blueberry and soft fruit cultivation
Flower and vegetable growing
Turf grass and landscaping projects
Soil science and agricultural research
Plant cultivation and nursery management
Smart agriculture IoT projects
Environmental and hydrological monitoring
Grain storage and substrate moisture measurement
For multi-parameter greenhouse projects, this sensor can be integrated with climate sensors, irrigation controllers, gateways, and the JW-IoT greenhouse monitoring system.
6.Installation and Measurement
For spot measurement, the sensor should be inserted vertically into the soil to ensure close contact between the probe and the measured medium. For long-term buried monitoring, the sensor can be installed in the wall of a pit at the required depth and then backfilled carefully to maintain stable contact with the surrounding soil. The probe should not be subjected to strong vibration or hard impact during installation.
This installation method makes the product suitable for continuous monitoring in fields, orchards, greenhouses, and irrigation zones where reliable root-zone data is required for water management decisions.
FAQ
Q
1.What does this JW-IoT soil moisture sensor measure？
A
This JW-IoT soil moisture sensor measures soil volumetric water content and soil temperature, depending on the selected model version. The product manual describes the sensor as a solution for soil moisture and temperature monitoring in agriculture, irrigation, greenhouse cultivation, and environmental applications.
Q
2.What measurement technology is used in the soil moisture sensor？
A
The sensor uses FDR technology to measure the dielectric constant of the medium and reflect the actual soil moisture content directly and stably. This measurement method is described in the supplier manual.
Q
3.Does JW-IoT offer this soil moisture sensor with RS485 Modbus？
A
Yes. This soil moisture sensor is available with RS485 Modbus output, and the manual also lists optional 0 to 2V and 4 to 20mA versions for different integration needs.
Q
4.Is this JW-IoT soil moisture sensor waterproof for outdoor use？
A
Yes. the sensor is rated IP68 and can be buried in soil or directly placed in water for long-term dynamic detection, making it suitable for outdoor monitoring projects.
Q
5.What is the moisture measurement range？
A
The moisture range is optional and includes 0 to 50 percent and 0 to 100 percent volumetric water content.
Q
6.What is the temperature range of this soil sensor？
A
The temperature measurement range is -40 to 80°C, with a resolution of 0.1°C and accuracy of ±0.5°C.
Q
7.Can the soil moisture sensor be used in greenhouse irrigation systems？
A
Yes. the sensor is suitable for greenhouse cultivation, water-saving irrigation, precision agriculture, plant cultivation, and soil moisture monitoring projects.
Q
8.Is this the sensor suitable for smart farming and IoT integration
A
Yes. With optional RS485 Modbus communication, this sensor can be integrated into PLCs, RTUs, dataloggers, gateways, and smart farming monitoring platforms. The manual provides Modbus registers and communication parameters for system integration.
Q
9.Can JW-IoT provide different cable lengths for this soil moisture sensor?
A
Yes. The supplier manual states that the default cable length is 2 meters, and custom cable length is available on request.
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