Features: 1. No call charges. The 4G LTE Gate Opener detects an incoming call from an authorized number and performs the ON/OFF action upon the first ring. 2. Modern door control method allows operation by simply making a call, eliminating the need for 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 automatically ignored. No need to distribute physical remote controls. 5. Remotely operable 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 connection to door sensors, motion sensors, or other security sensors. Triggers SMS alert and siren activation when activated. - One relay output (6A/240V AC) for connecting to door switches or machine controls. - Relay operation can send SMS confirmation to the owner; this feature is user-configurable. - Operates on 4G LTE network for wide compatibility and reliable connectivity. - Material: Metal - Color: Blue Package Contents: 1 x GSM Gate Opener Note: Other items not included. Note: Lighting and display differences may cause slight color variations between the product image and actual item. Measurement tolerance: ±1–3 cm.