The Fluke 1732 and 1734 handheld three-phase power loggers belong to the 1730 Series basic energy recorders, designed for electrical maintenance and energy audit engineers, focusing on energy consumption statistics, load analysis and basic electrical parameter monitoring. No external power adapter required; the instrument draws power directly from the measured circuit, paired with flexible iFlex current clamps to greatly simplify field wiring. Intelligent wiring self-check automatically identifies connection faults and reduces human measurement deviation. The unit simultaneously records core parameters including three-phase voltage, current, power, power factor, energy and total harmonic distortion, supporting weeks of unattended continuous logging. The upgraded 1734 model integrates WiFi wireless connectivity for real-time remote data viewing via mobile APP, and can connect two external analog sensors to synchronously collect auxiliary operating data such as temperature and pressure. The bundled Energy Analyze Plus software automatically generates energy consumption trends and cost analysis reports. Neither model supports full waveform capture for voltage dips/swells, positioned for basic energy survey, widely applied in factory workshop load statistics, commercial building power distribution energy audit, motor power factor optimization and overloaded circuit troubleshooting.