CY306 GSM Door Opener Mini Access Controller 3G 4G Remote Control Door Switch

--\n--\n--\n--\n--\n--\n--\n--\n--\n\nFeature: \n 1. Remote Door Opener: This remote door opener supports global GSM, 3G, and 4G comm frequency, and can be opened and closed remotely by making calls through a mobile phone, which is efficient and practical.\n2. Functions: 9\u201136V DC wide voltage input. Support for Callny Control APP adding 1001 authorized users and querying all users with just one button. Free access to remote control, SMS control, and APP control. Support continuous relay, 0\u20119999s relay delay closing time. Support remote restart and reset.\n3. Applicable Range: This access controller is suitable for gate, elevator, guardrail, garage door, parking lot, blinds, parking system, and maintenance door or machine, as well as on site base station, traffic controller, and electrical system power distribution.\n4. Secure Operation: No distance restrictions, can be operated from anywhere. 1 way output with relay, to connect the switch of a door or machine. Provide true -