Starting at $5,409.55

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  • Voltage up to 1000V
    • 0.1V resolution
    • ±(0.2% + 0.01%) accuracy
  • Up to 6000A with optional current probes
    • Resolution & accuracy depend on probe
  • 42.5 to 69Hz frequency
    • 0.01Hz resolution
    • ±(0.1%) accuracy
  • Measure all three phases and neutral
  • Capture dips, swells, and inrush currents
  • PQ Health (EN50160 analysis)
  • Waveform Snapshots & RMS profile
  • Typical memory of 10 logging sessions of 8 weeks
    • With 1-minute intervals and 500 events
  • Power instrument directly from the measured circuit
  • 600 V CAT IV/1000 V CAT III rated

What's in the Box

  • Power supply
  • Voltage test leads
  • Alligator clips (4x)
  • 12in 1,500A flexible current probe (4x)
  • Soft case
  • Energy Analyze Plus software
  • Magnetic hanging strap
  • Magnetic voltage probes (4x)
  • WiFi/BLE adapter
  • Line cords
  • Color coding set and documentation on USB flash drive

The Fluke 1738 Three-Phase Power Loggers are built with the Fluke Connect mobile app and desktop software compatibility give you the data you need to make critical power quality and energy decisions in real-time. The ideal test tools for conducting energy studies and basic power quality logging, the 1738 automatically capture and log over 500 power quality parameters so you have more visibility into the data you need to optimize system reliability and savings.

An optimized user interface, flexible current probes, and an intelligent measurement verification function that allows you to reduce measurement errors by digitally verifying and correcting common connection errors makes setup easier than ever and reduces measurement uncertainty. Access and share data remotely with your team via the Fluke Connect app so you can maintain safer working distances and make critical decisions in real-time, reducing the need for protective equipment, site visits and check-ins. You can also quickly and easily chart and graph measurements to help identify issues and create detailed reports with the included Fluke Energy Analyze Plus software package.

Applications include:

  • Load studies
  • Energy assessments
  • Harmonics measurements
  • Voltage and current even capture


Fluke i40S-EL3X Current Transformer
40mA to 4A & 0.4 to 40A clamp for up to 15mm diameter current conductors
Fluke I17XX IFLEX Current Probes
1500, 3000, and 6000A ranges available with an accuracy of ±(1% of reading +0.02% of range)


Fluke 17XX Silicone Lead Set
Red & black test lead set, 0.1m with straight plug, non-stackable connectors and rated to 1000V CAT III
Fluke 17XX PVC Lead Set
Red & black test lead set, 2m with straight plug, non-stackable connectors and rated to 1000V CAT III
Fluke 3PHVL-17XX Cable Assembly
3-phase plus neutral, flat 4-wire voltage test lead with no-tangle design
Fluke 1730 AUX Input Cable
Binder to BNC connecting cable for ±10VDC auxilliary input


Fluke Connect Measurements Android App
Wireless cloud-based program that communicates data from your testing tool to a mobile device
Fluke Connect Measurements iOS App
Wireless cloud-based program that communicates data from your testing tool to a mobile device


Please consider these optional accessories.

Fluke C173X Soft Case
Soft shell carrying case for the Fluke C17XX Energy or Power Logger and accessories
Fluke 173X Hanging Strap
Two part hanging kit with single and dual magnet options
Fluke Professional Tool Backpack
Durable high-quality polyester, injection molded plastic bottom base, six storage compartments