Based on GSM/3G/4G communication protocol, supports 1001 authorized users. remotely control by SMS commands & free calling. It is widely used in access control systems, garage doors, swing doors ,folding doors,sliding doors, parking system and the equipments that can be connected to the relay control , the G202PLUS gate controller & G203 gate controller will send a notification (via SMS) to the user of the result of the remote control (such as the opening and closing status of the gate).

GSM 4G gate controller support authorize 1001 users, control by GSM 4G remote control