Features: 1. No call charges. The 4GLTE gate opener responds to an incoming call from an authorized number and performs the ON/OFF action on the first ring. 2. Modern door operation method allows control without traditional remote controls. 3. Multiple applications including gates, bollards, barriers, garage doors, shutters, access doors, or machines. 4. Secure operation using caller ID verification; unauthorized callers are ignored. No need to issue remote controls to individual 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 activated - One relay output (6A/240VAC) for connecting to door switches or machine controls - Relay operation can send SMS confirmation to 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