WS1 Wifi Temperature Sensor
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Product Specifications
| Model | Power Supply | Max Current | Measuring Range | Accuracy | Resolution | Protection level | Connector | Cable Length | Communication Protocol | RS485 Address | Baud Rate |
|---|---|---|---|---|---|---|---|---|---|---|---|
| UB-SEC-N1 | DC 4.5~30V | — | soil+60%+25) EC: 1S/cm Temperature: 0.1 Humidity: 0.1% | — | — | IP68 | Audio | 3m | RS485 Modbus RTU Protocol | 0xD6 | 1200 bit/s, 2400 bit/s, 4800 bit/s (default), 9600 bit/s, 19200 bit/s |
Product Usage Instructions
Measurement Area
Measurement area: Inside a 5cm diameter cylinder of equal height
to the probes, centered on the center of the two probes.
Ground Penetration Method
Vertically dig a pit with a diameter of >20cm. Insert the
sensor pin horizontally into the pit wall at the established depth
and fill the pit tightly. After a period of stabilization,
measurements and recordings can be made over a period of days,
months, or even longer.
Communication Protocols
1. Communication Basic Parameters
- Coding System Data Bit
- Parity Checking Bit Stop Bit Error Checking Baud Rate 1200
bit/s, 2400 bit/s, 4800 bit/s (default), 9600 bit/s, 19200
bit/s
2. Data Frame Format
The Modbus-RTU communication protocol is used in the following
format:
- Initial structure: 4 bytes in time.
- Address code: 1 byte, default 0xE1.
- Function code: 1 byte, support function code 0x03 (read only)
and 0x06 (read/write). - Data area: N bytes, 16-bit data, high byte comes first.
- Error check: 16-bit CRC code.
- End structure: 4 bytes of time.
3. Register Address
| Address | Description |
|---|---|
| 0x0000 | Humidity (Unsigned integer data, divided by 10) |
| 0x0001 | Temperature (Signed integer data, divided by 10) |
| 0x0002 | EC Address Baud Rate Register Address Register Length Function Code (Integer 1255) |
NOTE:
- The probe must be fully inserted into the soil when
measuring. - Pay attention to lightning protection when using in the
field. - Do not violently bend the probe, do not pull the sensor lead
wire, do not drop or hit the sensor.
Frequently Asked Questions (FAQ)
Q: How deep should the sensor be inserted into the soil for
accurate measurements?
A: The sensor should be fully inserted into the
soil for accurate measurements.
Q: Can the sensor be used in outdoor environments?
A: Yes, the sensor can be used in outdoor
environments. However, it is important to pay attention to
lightning protection when using it in the field.
Q: What is the communication protocol used by the sensor?
A: The sensor uses RS485 Modbus RTU Protocol
for communication.
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Product Introduction
The sensor, with its stable performance and high sensitivity, is an important tool for observing and studying the occurrence, evolution and improvement of saline soils and water-salt dynamics. Measurement of the dielectric constant of the soil provides a direct and stable reflection of the true water content of various soils, as well as a measurement of the volume percentage of soil moisture.
Use Case Scenarios The sensor is suitable for soil moisture monitoring, scientific experiments, water-saving irrigation, greenhouses, flowers and vegetables, meadows and pastures, rapid soil measurement, plant cultivation, wastewater treatment, fine agriculture and other occasions.
Features 1. Soil water content, conductivity and temperature in one. 2. Completely sealed, acid and alkali corrosion resistant, can be buried in the soil or directly into the
water for long-term dynamic detection. 3. High precision, fast response, good interchangeability, probe insertion design ensures accurate
measurement and reliable performance.
Product Specifications
Model Power Supply Max Current Measuring Range
Accuracy
Resolution Protection level
Connector Cable Length Communication Protocol RS485 Address
Baud Rate
Specifications
UB-SEC-N1
DC 4.5~30V
110mA@5V EC: 0~20000S/cm Temperature: -40~80 Humidity: 0~100% EC: ±3%FS (0~10000S/cm), ±5%FS (10000~20000S/cm) Temperature: ±0.5 Humidity: ±2% (@0~50%, palm soil+30%+25) ; ±3% (@50~100%, palm
soil+60%+25) EC: 1S/cm
Temperature: 0.1 Humidity: 0.1% IP68
Audio
3m
RS485 Modbus RTU Protocol
0xD6
1200 bit/s,2400 bit/s, 4800 bit/s (default), 9600 bit/s, 19200 bit/s
Wiring Instruction
Measurement Area Measurement area: Inside a 5cm diameter cylinder of equal height to the probes, centred on the centre of the two probes.
Quick Test Method Select a suitable measurement site, avoid rocks and ensure that the steel needle does not touch hard objects. Throw away the top layer of soil according to the required measuring depth, keep the original tightness of the soil underneath, and insert the sensor vertically into the soil by holding it tightly. Do not shake the sensor from side to side when inserting it. It is recommended to take several measurements within a small area of one measurement point to find the average value.
Ground Penetration Method Vertically dig a pit with a diameter of >20cm. Insert the sensor pin horizontally into the pit wall at the established depth and fill the pit tightly. After a period of stabilisation, measurements and recordings can be made over a period of days, months or even longer.
Communication protocols
1. Communication basic parameters
Coding System Data Bit
Parity Checking Bit Stop Bit
Error Checking Baud Rate
Communication Basic Parameter 8bit binary 8 bits none 1 bit CRC Check
1200 bit/s, 2400 bit/s, 4800 bit/s (default), 9600 bit/s, 19200 bit/s
2. Data Frame Format
The Modbus-RTU communication protocol is used in the following format:
Initial structure 4 bytes in time.
Address code: 1 byte, default 0xE1.
Function code: 1 byte, support function code 0x03 (read only) and 0x06 (read/write).
Data area: N bytes, 16-bit data, high byte comes first.
Error check: 16-bit CRC code.
End structure 4 bytes of time.
Request
Slave Address
Function Code Register Address No. of Registers
CRC LSB
CRC MSB
1 byte
1 byte
2 bytes
2 bytes
1 byte
1 byte
Response
Slave Address Function Code No. of Bytes Content 1 Content 1
…
Content n
CRC
1 byte
1 byte
1 byte
2 bytes
2 bytes
…
2 bytes
2 bytes
3. Register Address
Address 0x0000 0x0001 0x0002 0x07D0 0x07D1
Content Humidity Temperature
EC Address Baud Rate
Register Address
Register Length Function Code
1
03
1
03
1
03
1
03/06
1
03/06
Description of definitions Unsigned integer data, divided by 10
Signed integer data, divided by 10 Integer 1255
0:2400, 1:4800, 2:9600
NOTE 1. The probe must be fully inserted into the soil when measuring. 2. Pay attention to the lightning protection when using in the field. 3. Do not violently bend the probe, do not pull the sensor lead wire, do not drop or hit the sensor
violently.
Documents / Resources
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UBiBOT WS1 Wifi Temperature Sensor [pdf] User Guide WS1, WS1 Pro, UB-SEC-N1, WS1 Wifi Temperature Sensor, WS1, Wifi Temperature Sensor, Temperature Sensor, Sensor |