Features: 1.Remote Controlling: Adopt GSM or 3G network communication, not limited by the distance. Adopt SMS remote setting parameters, easy to operate and use. Built in rechargeable backup battery to ensure work normally even the power outages. 2.Solid Housing: This GSM gate opener is made of premium metal material, which is sturdy and durable. And it has IP30 waterproof level, which can prevent raining. 3.Multiple Applications: Suitable for doors, garages, car parks, control rooms, warehouses, industrial sites, household appliances, access control, dropper, valve, gate and other remote control places. 4.Timing Function: You can set the time of opening and closing in the according to your requirements and use this relay remote control switch to make your door smart. 5.High Security: You can also authorize someone to open the door for a certain period of time, after which he can't call the door. A maximum of 200 authorized phone numbers can be configured at a specified time. Specification: Item Type: GSM Gate Opener_x000D_ Material: Metal_x000D_ _x000D_ GSM Frequency: Band 850/900/1800/1900MHz_x000D_ Digital Output: NC/NO dry contact 3A/240VAC_x000D_ Power Consumption: 9-24VDC/2A_x000D_ SIM Card: Supports 3V SIM cards_x000D_ GSM Antenna: 50 SMA antenna port_x000D_ Operating Temperature: -20-+60C_x000D_ Relative Humidity: 10-90%_x000D_ Size: Approx. 102 x 76 x 27mm / 4.0 x 3.0 x 1.1in PackageList: 1 xGSM Gate Opener 1 x Antenna 2 x Terminal 1 x Instruction