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 door 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 machines. 4. Secure operation using caller ID verification; unauthorized callers are ignored. No need to distribute physical remote controls. 5. Operable from any location with no distance limitation. Add or remove authorized users remotely 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 configuration of up to 999 authorized phone numbers Equipped with two digital inputs for connection to door sensors, motion sensors, or other security devices. Triggers SMS alert and activates siren when alarm condition is detected One relay output (6A/240VAC) for connecting to door switches or machine controls Relay activation can send SMS confirmation to the owner; this feature is user-configurable Operates on 4GLTE network for wide compatibility and reliable connectivity Material: Metal Color: Blue Package Contents: 1 x GSM Gate Opener