9 Switches, electric; measuring apparatus, namely, clamp meters for measuring electricity; measuring apparatus, namely, electronic data recorder for measuring voltage, current, electric power, electric resistance and temperature; measuring devices, electric, namely, electronic devices for measuring voltage, current, electric power, electric resistance and temperature; measuring devices for electric switches, namely, measuring devices for measuring voltage, current, electric power, electric resistance and temperature; wired or wireless communications apparatus for data or image transmission; data communication devices for electric switch gauges, namely, apparatus for transmission of communication; data communication devices for measuring devices, namely, apparatus for transmission of communication; data communication devices for electrical measuring devices, namely, apparatus for transmission of communication