Features: 1. No call charges. The 4G LTE gate opener responds to an incoming call from an authorized number and performs the ON/OFF action on the first ring. 2. Modern and convenient operation allows door control via smartphone calls instead of traditional methods. 3. Multiple applications including gates, bollards, barriers, garage doors, shutters, access doors, or machines. 4. Secure operation using caller ID identification; unknown callers are automatically ignored. No need to distribute remote controls to users. 5. Operable from any location with no distance limitation. Add or remove authorized users remotely 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 SMS alert and siren activation when activated. - One relay output (6A / 240V AC) for connection to door switches or machine controls. - Relay operation can send SMS confirmation to the owner; this feature is user-configurable. - Built on 4G LTE network technology for reliable connectivity across various 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 the image. Dimensional variations of ±1–3 cm may occur due to manual measurement.