... 0-100V 0-1A, mini measuring unit:1uA 1mV; high sampling speed (>8times/sec)digits holding or peak value display ... accuracy: 0.2%, 3-phase voltage and ampere input isolation, high anti-interference;5) Comunication: RS232/RS485 interface, MODBUS RTU ... Adjustor,thermocouple (TC and RTD), Panel Meter, Sensor Meter, inductor, Power Meter, Coulometer, Voltage Meter, Ampere Meter, Counter, Tacho Meter, ...