... Order: 200 pcs Multifunction electricity usage monitor TRMS V, TRMS A, kW, PF, kWh Energy Usage Time Backlight ... LCD. It displays various electrical parameters such as V, A, kW, PF, kWh & EUT etc. It ... power guard not only can be used as a measuring equipment for teaching, but also can be ... , rental estates, office, and laboratory.•Displays TRMS V, TRMS A, kW, PF, kWh etc.•Display Energy Usage Time ...