The M820K can be used where power quality, power and energy data need to be accurately and easily determined. It features a 7 "(18 cm) color touchscreen for data viewing and device setup, and Ethernet, Wi-Fi, and Bluetooth interfaces are available for remote deployment in security-critical environments MAVOWATT devices measure voltages and currents through four channels each and detect changes in the monitored electrical circuit: voltage dips and spikes, voltage spikes, harmonics, and flicker based on globally recognized industry standards such as IEC 61000-4-30: 2008 Class A, IEC 61000-4-7, IEC 61000-4-15, IEEE 1159, IEEE 519, IEEE 1453 etc. Depending on the model, low-, medium- and high-frequency transients as well as apparent, active and reactive power, power factor, demand can also be used / Energy etc. are detected.