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meters and multimeters, namely, panel meters, DC voltmeters, DC ammeters, process meters, AC and true-RMS (Root Mean Square) voltmeters and ammeters, ohmmeters, strain-gauge meters, thermocouple meters, RTD (Resistance Temperature Detector) meters, quadrature meters, frequency meters, rate meters, totalizers, tachometers, period timers, panel-mount printers, setpoint controllers, 4-20 MA (Milli Amp) transmitters, modular indicator/controller/transmitters, power line monitors and process receivers