Features: 1. No call charges. The 4G LTE gate opener detects an incoming call from an authorized number and executes the ON/OFF action on the first ring. 2. Innovative operation allows door control via mobile network, eliminating traditional methods. 3. Multiple applications including gates, bollards, barriers, garage doors, shutters, access doors, and machines. 4. Secure operation using caller ID; unknown 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: -10°C to +60°C - Storage Temperature: -20°C to +60°C - Relative Humidity: 10–90%, 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 connecting door sensors, motion sensors, or other security devices. Triggers send SMS alerts and activate siren. - One relay output (6A/240V AC) for connection to door switches or machine controls - Relay activation sends SMS confirmation to owner; this feature is user-configurable - Designed for 4G LTE network connectivity, suitable for various automation applications Material: Metal Color: Blue Package Contents: 1 x GSM Gate Opener (Other items not included) Note: Lighting and display settings may cause slight color variations between the product and images. Dimensional variations of ±1–3 cm may occur due to manual measurement.