... mA / mV / V / A etc.; display: -1999-9999 setting freely; regular power:220/110V. DP3 series Ampere Meter1) Input: AC 0-100V ... : -1999--9999, Decimal point can be set freely.5) Power supply:regular: 110V/220V others:40-260VAC/DC, 12-30V AC/DC ... Adjustor,thermocouple (TC and RTD), Panel Meter, Sensor Meter, inductor, Power Meter, Coulometer, Voltage Meter, Ampere Meter, Counter, Tacho Meter, Frequency ...