... voltage, current, frequency, phase, power factor at work site3) Energy meter data memory: >4,000 meters with completely computer management system4 ... worksite, display harmonic data and waveform diagram directly7) Supports bar code reading, automatic interprets the code8) Automatic measurement and record ... - +55°C, relative humidity: 30 - 80% MT3000D Portable field Energy Meter Multifunctional tester