1、Unlimited By Distance: Door remote controller supports GSM, GPRS, 3G network communication, not restricted by distance, you can use it as long as you have a network. 2、Multiple User Support: The GSM gate opener supports 999 number groups. Each set of numbers can be set within a specified time to control the relay. 3、Oversized Recording: You can always know the status of the door switch so you do not have to worry about locking the door. It has at least 1000 control and alarms histories. 4、Material: Adopts metal casing, IP30 protection level. The metal casing and system are safely isolated, especially suitable for industrial control applications. 5、Application: Suitable for doors, elevators, garages, car parks, resorts, control rooms, warehouses, automatic doors, electric doors, base stations, distribution system room. Item Type: GSM Gate Opener Material: 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 1 x GSM Gate Opener 1 x Antenna 1 x USB Cable 1 x Power Adapter 1 x Manual