Wireless transmission module based on the 437M frequency band development, converts RS485 received data signals into wireless signals. Enables wireless communication within a certain distance between paired wireless transmission modules. The receiving end captures the wireless signal and converts it back to an RS485 output signal. Allows users to deploy multiple wireless modules for data transmission without extensive signal cabling. Modules are operational upon power-up and connection to RS485 devices, enabling convenient remote operation of RS485 equipment and avoiding data transmission issues caused by corroded, damaged, or poorly connected cables. Requires configuration of only two parameters—baud rate and channel—settable via DIP switches, simplifying setup and improving user experience. Color: As shown Material: Plastic Package Contents: 1 x Wireless transceiver module Note: Light reflection and differences in display screens may cause slight variations in color between the image and the actual item. Measurement allows an error of +/- 1-3 cm.