Starting at $9,249.99

Not in stock. Usually ships in 2-3 weeks [?]

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  • Measure key parameters on direct-on-line motors
    • 1 to 1000hp (0.7 to 746kW) mechanical power
    • 0 to 10,000lb/ft or Nm torque range
    • 0 to 3600rpm motor speed
    • 0 to 100% motor efficiency
  • Identify dips, swells, transients, harmonics & unbalance
  • Waveform capture function captures 100/120 cycles (50/60 Hz)
  • 3 years parts & labor warranty on main instrument
  • 600 V CAT IV/1000 V CAT III rated
  • CE & CSA approved

What's in the Box

  • Test lead set
  • Battery
  • Power adapter
  • 8GB SD card
  • Soft case

The Fluke 438-II power quality and motor analyzer adds key mechanical measurement capabilities for electric motors to the advanced power quality analysis functions of the Fluke 430 Series. Quickly and easily measure and analyze key electrical and mechanical performance parameters such as power, harmonics, unbalance, motor speed, torque and mechanical power without the need of mechanical sensors.

It will help locate, predict, prevent, and troubleshoot power quality problems in three-phase and single-phase power distribution systems, while giving technicians the mechanical and electrical information they need to effectively evaluate motor performance.


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 i430 Flex Current Clamp
Flex clamp fits around bus bars and large or hard-to-reach conductors
Fluke C437-II Hard Case
Rugged, roller case with expandable handle for Fluke 430 Series II
Fluke C1740 Soft Case
For the Fluke 430 Series II
Fluke i400s AC Current Clamp
CAT IV 600V & CAT III 1000V safety rated clamp with BNC connector for measuring up to 400A
Fluke BP291 Li-Ion Battery
4800mAh high capacity lithium-ion battery for use with the 190-II or 430-II series
In Stock
Fluke i5s AC Current Clamp
Low level current clamp measures up to 5A AC on conductor diameters up to 15mm with 400mV/A output and BNC connector
Fluke GPS430-II Time Synchronization Module
Enables precision time-stamping of data by keeping the internal clocks of multiple instruments synchronized
Fluke HH290 Hanging Hook
Hanging hook for use on cabinet doors
Fluke Electrical Power Training Program
Electrical Power Training Program for power quality meters
Fluke Professional Tool Backpack
Durable high-quality polyester, injection molded plastic bottom base, six storage compartments