Features: 1. No call charges. The 4GLTE gate opener rejects the call from an authorized number and performs the ON/OFF action on the first ring. 2. Enables convenient gate operation without traditional methods; supports remote activation via mobile network. 3. Suitable for multiple applications including gates, bollards, barriers, garage doors, shutters, access doors, and machinery. 4. Secure operation using caller ID verification; ignores unknown callers. No need to distribute physical remote controls to users. 5. Operable from any location with no distance limitation. Add or remove authorized users via SMS. Specifications: - Rated Voltage: 12VDC, 1A - Working Temperature: -10°C to +60°C - Storage Temperature: -20°C to +60°C - Relative Humidity: 10–90%, non-condensing - 4GLTE Frequency Bands: B1, B3, B5, B8 - Output Relay Contact Rating: 6A/240V AC - Supports up to 999 authorized phone numbers - Two digital inputs for door sensors, motion sensors, or other detection devices; triggers SMS alert and siren activation when alarm condition is detected - One relay output (6A/240VAC) for connecting to door switches or machine controls - Relay operation can send SMS confirmation to the owner; this feature is user-configurable - Operates on 4GLTE network for wide compatibility and reliable connectivity - Housing Material: Metal - Color: Blue Package Contents: 1 x GSM Gate Opener