["Feature:\nSupport 200 groups of number, each group number can be set to control the relays within the specified for time period.\nSingle way relays output, the authorized number is closed after call in, and automatically disconnects after reaching the set for time.\nAfter the permission phone control the relays, an action message can be sent to the user.\nBetween 0 and 999 seconds, the relays closing for time can be arbitrarily controlled, 0 the relays is closed after 0.5 seconds, and 999means the relays is for closed until the permission number.\nThe current status of the device (relays status and GSMsignal value) can be queried via command.\nYou can periodically uploads the current status of the device to the first user.\nUse the clock on the modules to send a text message to yourself each for time you turn it on.\nUse 2Gcommunication, without distance limitation, can be used anywhere.\nWide working voltage design, support 9-24V for DC power supply, and with anti-reverse for protections design.\nUse to set parameters remotely, easy to operate, easy to use.\nIt is made of metal and has a for protections rating of IP30. The metal casing and system are safely isolated, especially suitable for industrial control applications.\n\nSpecifications:\nItem Type: Gate Opener\nFrequency: 850/900/1900MHz\nOutput: AC3A/240V \nPower Consumption: 12V 50mA\nSIMCard: support for 3V SIMcard\nAntenna: 50Ω Antenna Interfaces\nWorking Temperature: -20-60°C/-4-140℉\nRelative Humidity: 10-90%\nMaterial: Plastic\nSize: 9x7x2.7cm/3.5x2.7x1.06in\nColor: White\nQuantity: 1Pc\n\nApplications:\nRemote open/close swing/sliding gates, doors, shutters, garage doors,lock with a free call!\nResidential: Door,gate,garage access control, electronic fan,microwave,-conditioner control.\nIndustry: Remote switches equipment, for example: street lights, motor, inverter, pumps, fans, etc.\nAgriculture: Remote control pumps, etc.\nBusiness: Remote control electronic boxes,bright billboards,LED signs,etc.\n\nNote:\nPlease allow 1mm errors due to manual measurement. \nDue to the difference between different monitors, the picture may not reflect the actual color of the item.\n\nPackage Includes:\n1x Gate Opener\n1x Antenna\n1x User Manual"]