RTU5035 GSM Gate Opener - What it is: A simple, reliable device for authorized door access, gate control, switching remote devices, and parking systems. It can protect your assets by enabling access from your mobile phone via a free call. - Free call and app control: No call fees. The GSM gate opener rejects calls from unauthorized numbers and performs the on/off action immediately for authorized numbers. Open a gate or garage door with a free call from your mobile phone. Configure and manage the device via the app, and you can also open quickly by shaking your phone. - Security and safety: Caller ID identification allows unknown callers to be ignored, enhancing security so strangers cannot control your GSM device to open doors. Provides asset protection at low cost. - Access capacity: Up to 999 authorized phone numbers can be configured for access control at specified times. Add different numbers for family, friends, or colleagues so everyone can control the switch. - Practical use scenarios: - Home access: Family members open the gate or garage door by free call or app, with convenient, secure access. - Small business or office: Employees’ or contractors’ numbers are configured for controlled gate access during set hours. - Parking or gated facilities: Manage access for multiple users to a parking system or remote gate, when needed, with time-based permissions.