Features: 1. No call charges. The 4G LTE gate opener responds to incoming calls from authorized numbers and performs the open/close action upon the first ring. 2. Modern operation method allows convenient access without traditional remote controls. 3. Multiple applications including gates, bollards, barriers, garage doors, shutters, access doors, and machinery. 4. Secure authentication using caller ID; unauthorized callers are automatically ignored. No need to distribute remote controls to users. 5. Operable from any location with no distance limitations; add or remove authorized users via SMS. Specifications: - Rated Voltage: 12V DC, 1 A - Working Temperature: -10C to +60C - Storage Temperature: -20C to +60C - Relative Humidity: 1090% (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 door sensors, motion sensors, or other security devices; triggers SMS alerts and siren activation when activated - 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) - Operates on 4G LTE network for reliable connectivity in various applications Material: Metal Color: Blue Package Contents: 1 x GSM Gate Opener