Features: 1. No call charges. The 4G LTE gate opener responds to calls from authorized numbers and performs the ON/OFF action on the first ring. 2. Innovative operation method allows door control via motion activation, offering an alternative to traditional opening methods. 3. Suitable for multiple applications including gates, bollards, barriers, garage doors, shutters, access doors, and machines. 4. Enhanced security through caller ID verification; unauthorized callers are automatically ignored. No need to distribute remote controls to individual users. 5. Remote operation capability from any location without distance limitations. Add or remove authorized users via SMS commands. 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 (Other items not included) Note: Lighting and display settings may cause slight variations in color between the product and images. Dimensional variations of +/- 1–3 cm may occur due to manual measurement. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-YJL official store