Wireless transmission module based on the 433MHz frequency band development, converts RS485 received data signals into wireless signals. Can communicate wirelessly with another wireless transmission module within a certain distance. The receiving end captures the wireless signal and converts it back into an RS485 signal for output. Users can deploy multiple wireless transmission modules for data transmission, eliminating the need for extensive signal cabling. Modules only require power and connection to RS485 devices to enable mutual data communication, simplifying remote operation of RS485 devices and avoiding data transmission issues caused by corroded, broken, or poorly connected signal lines. The module requires setting only two parameters—baud rate and channel—configurable via DIP switches, making setup simple and user-friendly. Color: As shown Material: Plastic Package Contents: 1 x Wireless transceiver module (Other products not included) Note: Light reflection and display differences may cause slight color variations between the image and the actual item. Measurement error allowance: +/- 1-3 cm.