GMAX brand four-channel wireless remote control transmitter, model GM-R131C. This practical and compact device operates on a 12V battery and utilizes a standard 433.92 MHz radio frequency. It is designed for the convenient remote operation of barrier gates, automatic garage doors, electric locks, and various wireless relay receivers used in access control systems. Featuring four independent buttons, it enables users to seamlessly and securely control up to four different devices, mechanisms, or entry points using just a single remote.
