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. Modern door operation method allows activation by shaking motion, offering a unique alternative to traditional opening methods. 3. Multiple applications including gates, bollards, barriers, garage doors, shutters, access doors, or machines. 4. Secure operation using caller ID for identification; unknown callers are automatically ignored. No need to distribute remote controls to different users. 5. Remotely operable from any location without distance limitations. 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 Equipped with two digital inputs for door sensors, motion sensors, or other detection devices; triggers SMS alert and siren activation when sensor is activated One relay output (6A/240VAC) for connecting to door switches or machine controls Relay activation can send SMS confirmation to owner; this feature is user-configurable Operates on 4GLTE network for wide compatibility across various applications Material: Metal Color: Blue Package Contents: 1 x GSM Gate Opener