["brand new and high quality\nFeatures:\nNo call charges. The GSM gate opener rejects the call from the authorized number, and then the relay will turn on/off on the first ring.\nOpening the door is no longer the traditional practice, but shaking the phone to unlock the door will be more interesting.\nMultiple applications. (gates, bollards, barriers, garage doors, shutters and access doors or machines).\nSecurity-use caller ID for identification, unknown callers will be ignored.\nCan be operated from anywhere, without distance limitation.\nAdd or delete users through SMS text commands.\nNo need to provide remote control for different users.\nUp to 200 authorized telephone numbers can be configured.\nOne output with relay (3A/240VAC) for connecting a door or machine switch.\nThe relay operation will return an SMS confirmation to the owner, this function can be edited by the user.\nBased on GSM internet, suitable for many applications.\n\nTips:\nScan the code to download the APP and the electronic version of the manual.\nCustomers who purchase single quantity (≧10) can print the logo you need for free. (Communicate with our customer service and send your designed picture)\n\nSpecifications:\nRated Voltage: for DC 9V~6V/1A\nWorking Temperature: -10℃ ~ +60℃\nStorage Temperature: -20℃ ~ +60℃\nRelative Humidity: 10-90%, No Condensation\nWork Frequency: GSM: 850/900/1800/1900MHz\nCommunication Protocol: GSM PHASE 2/2+ (include data service)\nRelated Voltage of the Output Relay: 3A/240V AC\nCommunication technical specifications: 2G\nSIM Card: for Nano type, 3V\nAntenna: 50 Ω SMA\nWired Switch: Support\nApplication: It can be well integrated with most electronic locks, garage doors, sliding doors, swing doors, gate motors, gate operators, and is widely used in residential, institutional, and industrial markets. Remote control the door close/open.\nRemote control distance: no distance limit\nManage users: 200 users\nHow to remote control: phone application, SMS, phone calling\nAlarm: real-time alarm by calling your phone, send you SMS\nTimer: Can be set to turn on/off at any special for time you want\nControl doors number: control one door\nEvent record: each operation record can be viewed in the mobile phone application\nSupport all GSM 2G frequencies in the world\nSize: app.8x4.9x3cm/3.15x1.93x1.18in\nMaterial: Electronic Components\nColor: As pictures shown\nQuantity: 1set\n\nNote:\nPlease allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid.\nDue to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!\n\nPackage includes:\n1 x Control Unit\n1 x GSM Antenna\n1 x User Manual(other accessories demo in the picture is not included.)"]