Features: 1. No call charges. The 4G LTE gate opener responds to incoming calls from authorized numbers and performs the ON/OFF action on the first ring. 2. Convenient operation allows door control via mobile phone without traditional remote controls. 3. Suitable for multiple applications including gates, bollards, barriers, garage doors, shutters, access doors, and machines. 4. Secure access control using caller ID; unauthorized callers are ignored. No need to distribute physical remote controls. 5. Operable from any location with no distance limitations. 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 will activate SMS alerts and siren output. - 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 and display settings may cause slight color variations between the product image and actual item. Measurement tolerance: ±1–3 cm.