GMAX brand four-channel wireless remote control transmitter, model GM-R031. This compact device operates on a 12V battery and utilizes a standard 433.92 MHz radio frequency. It is specifically designed for the convenient remote management of barrier gates, automatic garage doors, electric locks, and various wireless relay receivers used in access control systems. Featuring four independent buttons, it allows users to effortlessly control up to four different devices or secure channels using just a single remote.
