Features: 1. No call charges. The 4G LTE gate opener rejects the call from an authorized number and performs the ON/OFF action on the first ring. 2. Modern door operation method – convenient and efficient remote control via mobile network. 3. Multiple applications, including gates, bollards, barriers, garage doors, shutters, access doors, and machines. 4. Secure operation using caller ID verification; unknown callers are ignored. No need to issue physical remote controls to users. 5. Operable from any location with no distance limitation. Add or remove authorized users remotely via SMS. Specifications: - Rated Voltage: 12V DC, 1 A - Working Temperature: -10°C to +60°C - Storage Temperature: -20°C to +60°C - Relative Humidity: 10–90%, non-condensing - 4G LTE Frequency Bands: B1, B3, B5, B8 - Output Relay Contact Rating: 6A / 240V AC - Supports up to 999 authorized phone numbers - Two digital inputs for connecting door sensors, motion sensors, or other security sensors. Triggers send an SMS alert and activate siren (if connected). - One relay output (6A / 240V AC) for connecting to door switches or machine controls. - Relay activation can send SMS confirmation to the owner (user-configurable function). - Designed for 4G LTE network connectivity, suitable for a wide range of automation applications. - Material: Metal - Color: Blue Package Contents: 1 x GSM Gate Opener