Ajit electronics offers digital panel meters. These are available for dc millivolts, dc volts, ac millivolts, ac volts, dc micro amps, dc milli amps, dc amps, ac micro amps, ac milli amps, ac amps, line [mains] frequency, signal frequency, and temperature measurements. Also available for display of rpms for output signals of tacho generators, and for operations with external shunts and current transformers [ct] for higher current measurements.