Features: 1. No call charges. The 4GLTE gate opener rejects the call from an authorized number and performs the ON/OFF action on the first ring. 2. Enables convenient door operation without physical remotes; activation occurs upon detection of an authorized call. 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 without distance limitations. Add or remove authorized users via SMS. Specifications: Rated Voltage: 12VDC, 1A Working Temperature: -10°C to +60°C Storage Temperature: -20°C to +60°C Relative Humidity: 10–90%, non-condensing 4GLTE Frequency Bands: B1, B3, B5, B8 Output Relay Contact Rating: 6A/240V AC Supports up to 999 authorized phone numbers Equipped with two digital inputs for door sensors, motion sensors, or other security sensors. When triggered, sends an SMS alert and activates the siren immediately. One relay output (6A/240VAC) for connecting to door switches or machine controls. Relay activation can send an SMS confirmation to the owner; this feature is user-configurable. Operates on 4GLTE network for wide compatibility across various applications. Material: Metal Color: Blue Package Contents: 1 x GSM Gate Opener Note: Other items shown are not included. Note: Lighting and display differences may cause slight color variations between the product image and actual item. Measurement tolerance: ±1–3 cm.