Digital Multimeter

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Product Code: U1281A

$888.80 inc GST
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Estimated Leadtime: 6 weeks
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Today, three-phase AC electric motors are the most important workhorses in industry and commercial facilities. With the advent of solid state electronics, variable speed drives (VFD) are used to regulate the speed of three-phase AC motors to increase the efficiency of AC motors. However, the increased use of VFDs present challenges to technicians in getting accurate voltage, current and frequency measurements that match with readings shown on the VFD’s control panel display. Many true RMS DMMs that have high AC bandwidth are measuring VFD signals up to 20% to 30% higher than the drive’s controller display due to the reason that DMMs are measuring the carrier frequency/switching frequency generated by VFDs. Keysight U1280 Series comes with LPF (low pass filter) feature which blocks unwanted high frequency signal from VFDs’ switching components. The net result is an accurate measurement of VFD’s output signal which helps to expedite the maintenance or troubleshooting tasks of VFDs.


  • 60,000-count dual display
  • Up to 0.025% basic DCV accuracy
  • Longer battery life up to 800 hours
  • Certified to IP 67 for water and dust protection
  • Tested to withstand a 3-meter (10-ft) drop
  • CAT III 1000 V / CAT IV 600 V overvoltage protection

Technical Specifications

Basic 1-Year DCV Accuracy
Battery Life
800 hours
IR to USB or Bluetooth
Digits of Resolution
4 ½ digits
Display Type
7-segment LCD
Internal Memory
IP Rating
IP 67
Max. Reading Speed
40 readings/s
Measurement Functions
DCV and ACV, DCI and ACI, 2-wire Resistance, Frequency, Capacitance, Diode test, Continuity test with visual and audio alerts, Temperature
Handheld Meter Logger

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