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