Features: 1. No call charges. The 4G LTE gate opener detects a call from an authorized number and performs the ON/OFF action on the first ring. 2. Innovative operation allows door control via smartphone, eliminating traditional remote controls. 3. Suitable for multiple applications including gates, bollards, barriers, garage doors, shutters, access doors, and machinery. 4. Secure operation using caller ID verification; unauthorized callers are ignored. No need to distribute physical remote controls. 5. Remotely operable from any location with no distance limitations. Authorized users can be added or removed 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 connection to door sensors, motion sensors, or other security devices. Triggers SMS alerts and activates siren when activated. - One relay output (6A / 240V AC) for connecting to door switches or machine controls. - Relay activation sends an 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 (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.