RY-WSY temperature and humidity and press sensor
Working Principle
The sensor adopts the imported SHT11 chip and the imported sensor module ms5540c. The module includes a temperature sensing element, a humidity sensing element, a piezoelectric resistance pressure sensing element and an ADC interface IC. It has a wide range and strong anti-static ability. They are converted into digital Modbus protocol output through the change of environment parameters.

Installation and use
●Selection of installation location. This product can be installed indoors or outdoors, and far away from high-power electrical equipment to prevent interference.
●Welding of output cable. The temperature and humidity sensor is equipped with a four core cable. The user can match the cable with appropriate length as required. The cable specification is 0.2mm² Four core shielded cable, and the wiring color is defined as below:
Digital output | |
Red | Positive pole |
Black | Negative pole |
Yellow | A |
Blue | B |
●After the product is fixed on the mounting rack or indoor wall, test whether the data collection is normal. If not, check whether the cable plug is well connected.

Precautions & Maintenance
●After unpacking, please check whether the product is consistent with your order requirements, and whether the package and product are damaged. If there is any mistake, please contact us.
●Please connect the wires correctly according to this manual.
●Hot unplugging is prohibited when using this product.
●This product is a precision measuring instrument. It is strictly prohibited to hit, impact, forcefully clamp, disassemble or poke the pressure hole or metal diaphragm with sharp instrument.
●The conductor of this product shall not be laid together with high-voltage cable.
●Wipe the outside of the instrument with a clean, dry, soft cloth.
●Please do not input power more than the maximum access power of the device, otherwise the instrument will be damaged.




