RTU5025 Gate Opener GSM 3G 4G LTE Wireless Remote Gate Opener Operator Garage Door Access Controller AC 100‑240V 4GL‑A US Plug Item Type: GSM Gate OpenerMaterial: Metal GSM Frequency: Band 850/900/1800/1900MHz 3G Frequency: 900/2100MHz 850/1900MHz Digital Inputs: 2 inputs, one fixed for access control Alarm Output: 12VDC/1A Power Supply Range: 9~24VDC/2ASIM Card: 3V SIM card is supported GSM: Antenna 50 Ω SMA antenna interface Working Temperature: -20~+60 °C Relative Humidity: 10~90% Backup Battery: 3.7V 900mAH lithium batteryx1 (built in) Product Size: Length 88mm/3.46in, width 78mm/3.07in, height 32mm/1.26in Application: Remote control of garage doors, automatic doors, gates, electric doors, etc., etc.; Remote control of equipment, pumps, gates, valves, etc.; Doors, elevators, garages, parking lots, resorts, control rooms, warehouses and group nature such as unattended computer rooms of telecom operators, field optical distribution cabinets, field base stations, traffic controller chassis, power distribution system computer rooms and field cabinets Remote control of other devices