Features:This is a wireless GSM controller, which can be used to remote control the on and off of many electrical appliances such as network server, wireless router, TV, lamp, etc.Easily control many household electrical appliances through only a text or a phone call.Made from aluminium alloy shell, it is easy to dissipate heat and can effectively prevent fire hazards as well.Comes with the controller and antenna, and it is easy to install and operate.Remote control server, routing, large switch, no longer worry for the accidental fault.It has a wide applicable fields, for example, unmanned stations, remote monitoring, forest protection, mechanical and electrical equipment to achieve the real reliable control throughout the day, farmland irrigation, oxygen increasing fish ponds, the sea fish raft operation, automatic to feed animals, and other automation applications.Specifications:Model: CL1-GSMGSM Frequency Band:850 or 900 or 1800 or 1900 MhzPower adapterplug: EU plugOutput current: 10AMaximum output power: 2200W (half of the inductive load)Product certification: CE, ROHSItem Size: Approx. 115mm x 70mm x 30mm or 4.53'' x 2.75'' x 1.18''Package Weight: Approx. 290gPackage Included:1 x Switch Controller1 x Power Adapter Cable1 x AntennaNote:1. It is easy to install but professional installation is highly recommended.2. Dear customers, if you need other plug adapter, please contact us.3.The product only supports 2G, GSM frequency band: 850 or 900 or 1800 or 1900 Mhz..