... user;high sampling speed(>8times/sec)digits holding or peak value display function.3) Output: Isolated 4-20mA output for ... ,thermocouple (TC and RTD), Panel Meter, Sensor Meter, inductor, Power Meter, Coulometer, Voltage Meter, Ampere Meter, Counter, Tacho Meter, Frequency Meter, flowmeter,Timer,Timer Relay, Solid ... :086-0760-23609692 Mobile: 086-13217608016 DH8 series True Value Voltage & Ampere Meter