To measure the usage of electricity in a home or any kind of building an EMF meter can be used. EMF meters or the Electro Magnetic Force Meters work based the principle of EMF and that is detecting electro magnetic force created as electro-magnetism whenever power flows through a line and depending on the amount of EM force created it will be designed in such a way to use it proportionally to measure the electric power consumed through the power line. This very important in stand point of power generation, transmission and distribution, as it helps to understand the power supply needs of a household or a complex and supply power accordingly. There are various types of EMF meters based on the make, model and its use and choosing the right EMF meter for your home or commercial space requires a little bit of technical understanding of these meters. Based on uses meters are categorized as commercial purpose, personal use, Govt. use meters and there are paranormal meters to even for non-standard uses. It is very important from Govt. or Electricity regulatory Authorities stand point to use the right meter in order to avoid disputes and penalty charges for it. When buying an EMF meter the quality of meter by checking its rating standards, seals and logo of manufacturer, clear information on its capacity, calibration certificate and more as such have to be seen. As these are electrical equipment dealing with power and defect or faulty manufacturing will pose a huge risk to the consumers. A good EMF meter will also come with standard insulation and power protection proof. EMF meter accessories that support and protect the meters such as meter case, holder, mounting bracket and cover are also available, it is highly advised that home owners and consumers should use the accessories to avoid any shocks and power leakages while handling the meters.