GMAX brand four-channel wireless remote control relay (receiver), model GM-R407B. This device is designed for the remote management and triggering of various electronic mechanisms. It operates on a 12V DC power supply and utilizes a standard 433.92 MHz radio frequency. Featuring four independent channels (relays), it allows you to connect and remotely control up to four different devices—such as automatic gates, barriers, electric locks, or lighting systems—using a compatible remote transmitter. It is an ideal component for access control and home automation setups.
