Feature:1. GSM DOOR OPENER: 4G GSM remote switch, used as the gate, shutter, garage door opener, can be remotely control on and off by making a free call through the mobile phone, and open the door.2. MULTIPLE FUNCTION: Support 3G and 4G, supports the addition of 1001 authorized users, free access to remote control, APP control, 09999s relay closure, supports relay continuity, and has no time limit.3. REMOTE CONTROL: This door opener supports remote restart, remote reset, unlimited distance, can be operated anytime, anywhere, with GSM 3G 4G comm frequency, can be used in global GSM networks.4. PLASTIC HOUSING: The door opener shell is made of excellent ABS plastic, with good insulation, impact resistance, long service life, support wall mounting, suitable for industrial control applications.5. WIDE APPLICATION: Suitable for elevators, garages, parking lots, resorts, control rooms, warehouses, group unmanned machine rooms, on site base stations, traffic controllers, ETC, electrical system, etc.Specification:Item Type: GSM Gate OpenerModel: G203Material: ABSApplication: Access Control, GarageRated Voltage: DC9V-36V 1AWorking Temperature: -10~+60Storage Temperature: -20~+60Relative Humidity: 10-90%, no condensationWorking Frequency: Global GSM 3G 4G FrequencyOutput Relay Voltage: 5A 250VAC, 7A 125VAC, 20A 14VSwitch: SupportRelay Ports: 5A 250VAC, 7A 125VAC, 20A 14V, 20A 5VFunctions: 1. Support for callny control APP to add 1001 authorized users2. Supports one key query of all users3. Call remote control, SMS control, APP control for free4. Supports continuous trunk without time limit5. Relay delay closing time supports 0-9999s6. Multiple Applications: Gates, bollards, guardrail, garage doors, shutters, parking systems and access doors or machine7. True authorization protection, unknown callers are ignored8. Not limited by distance and can be operated anywhere9. 1 way output, with relay, used to connect the door or machine switch10. Based on GSM 3G 4G comm frequency, suitable for a variety of applications11. 9-36VDC wide voltage input .Package List:1 x Door Opener3 x Wire Terminals1 x Antenna1 x User Manual