Features: 1. No call charges. The 4G LTE gate opener detects an incoming call from an authorized number and performs the ON/OFF action on the first ring. 2. Modern door control solution with shake-to-open functionality for added convenience. 3. Multiple applications including gates, bollards, barriers, garage doors, shutters, access doors, and machines. 4. Secure operation using caller ID authentication; unknown callers are automatically ignored. No need to distribute remote controls to users. 5. Remote operation from any location without 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 immediate SMS alert 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; this feature is user-configurable. - Operates on 4G LTE network for reliable connectivity across various applications. Material: Metal Color: Blue Package Contents: 1 x GSM Gate Opener Note: Other items not included. Note: Lighting effects and display settings may cause slight color variations between the product image and actual item. Dimensional variations of ±1–3 cm may occur due to manual measurement.