Unlike kWh meters, multi-function meters also measures for voltage, current, power, power factor, real and reactive energy, and frequency
Energy meters used for M & V are indispensable for energy management, aside from providing the basic kWh measurements, they can also measure the voltage, current, power, power factor and other energy related data; these data can be transmitted to a remote host for logging and later analysis; reports allows for detecting anomalies, improving performance, consumption records and so on. They are an essential component for any smart building initiative.
Remote stored value meters have communication and a built-in relay. They work similar in concept to prepaid mobile phones, a certain amount of credits (in kWh) is stored within the meter itself. As energy is being consumed, the remaining credits is reduced accordingly; when no credits remain, the meter will cut off the power.
Based on this mechanism, the burden to the landlord can be greatly reduced, they would no longer need to assign someone or bring any device to the rental site just to dispense credit.