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 upon the first ring. 2. Convenient hands-free operation allows door activation without traditional methods. 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 remote controls to individual users. 5. Remotely operable from any location with no distance limitation. Add or remove authorized users via SMS. Specifications: - Rated Voltage: 12V DC, 1 A - Operating 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 programmable authorized phone numbers - Two digital inputs for connecting door sensors, motion detectors, 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 - User-configurable SMS confirmation sent upon relay activation - Operates on 4G LTE network for wide compatibility and reliable connectivity - Material: Metal - Color: Blue Package Contents: 1 x GSM Gate Opener Note: Light reflection and display settings may cause slight variations in color between the product image and actual item. Measurement tolerance: ±1–3 cm.