UB-SPH-N1 WiFi Temperature Sensor
“
Product Specifications
| Model | Power Supply | Max Current | Measuring Range | Resolution | Protection Level | Connector | Cable Length | Probe Material | Sealing Material | Communication Protocol | RS485 Address | Baud Rate |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UB-SPH-N1 | DC 5~30V | 132mA@5V | 3~9 PH | 0.1 | IP68 | Audio | 3m | Anti-corrosion special electrode | Black flame retardant epoxy resin | RS485 Modbus RTU Protocol | 0xE1 | 1200 bit/s, 2400 bit/s, 4800 bit/s (default), 9600 bit/s, 19200 bit/s |
Product Usage Instructions
Wiring Instruction
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: none
- Data Bit: 1 bit
- Parity Checking Bit: CRC Check
- Stop Bit: 1 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.
Note:
- The probe must be fully inserted into the soil when
measuring. - Pay attention to the 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 violently. - Due to the presence of radio frequency electromagnetic
radiation in the air, should not be in the…
Frequently Asked Questions (FAQ)
“`
Product Introduction
The probe adopts PH electrode, with stable signal and high precision. It has the features of wide measuring range, good linearity, good waterproof performance, easy to use, easy to install, and long transmission distance. Adopting MODBUS-RTU protocol, the upper computer can monitor the value through the communication mode of RS485 interface. Used with equipment to achieve the function of remote measurement and online monitoring on the computer platform or mobile phone APP.
Use Case Scenarios It is widely used in homes, offices, flowers, farms and other places where soil pH needs to be measured.
Features 1. High precision and fast response. 2. Stronger stability and anti-interference ability. 3. Wide voltage input, DC 5~30V. 4. Standard MODBUS RTU protocol.
Product Specifications
Model Power Supply Max Current Measuring Range
Resolution Protection level
Connector Cable Length Probe Material Sealing Material Communication Protocol RS485 Address
Baud Rate
Specifications UB-SPH-N1 DC 5~30V
132mA@5V 3~9 PH 0.1 IP68 Audio 3m
Anti-corrosion special electrode Black flame retardant epoxy resin
RS485 Modbus RTU Protocol 0xE1
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
Communication Basic Parameter 8bit binary 8 bits
Parity Checking Bit Stop Bit
Error Checking Baud Rate
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.
Request
Slave Address
Function Code Register Address No. of Registers
1 byte
1 byte
2 bytes
2 bytes
Response
Slave Address Function Code No. of Bytes Content 1 Content 1
1 byte
1 byte
1 byte
2 bytes
2 bytes
End structure 4 bytes of time.
3. Register Address
CRC LSB 1 byte
CRC MSB 1 byte
…
Content n
CRC
…
2 bytes
2 bytes
Address 0x0000 0x07D0 0x07D1
Content PH
Address Baud Rate
Register Address
Register Length Function Code
1
03
1
03/06
1
03/06
Description of definitions Unsigned integer data, divided by 10
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. 4. Due to the presence of radio frequency electromagnetic radiation in the air, should not be in the
air for a long time in the state of power.
Documents / Resources
 |
UBIBOT UB-SPH-N1 WiFi Temperature Sensor [pdf] User Guide UB-SPH-N1, UB-SPH-N1 WiFi Temperature Sensor, WiFi Temperature Sensor, Temperature Sensor, Sensor |