Extech Appliance Tester and Power Analyzer

Extech Appliance Tester and Power Analyzer


The Extech Appliance Tester and Power Analyzer is a compact battery operated device for analyzing AC power loads.


  • Battery or AC adaptor provides line isolation
  • Plug device to be tested directly into the power analyzer
  • Four simultaneous displays of watts, power factor or VA, voltage or Hz, amps
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The Extech Appliance Tester and Power Analyzer simultaneously displays watts, power factor or VA, voltage or Hz, and amps. It performs true RMS voltage and current measurements if sine, square, triangular, and distorted wave forms with a crest factor of less than 5. The battery or AC adaptor provides line isolation, and users can plug a device to be tested directly into the power analyzer. Sampling update rae is 2.5 times/second. Model 380803 includes a built-in datalogger that stores up to 1,012 readings.


The software allows users to download stored data or save data directly, and to create an ASCII file. Computation include phase angle, apparent and reactive power, consumption and cost, and power factor correction. Applications include measuring and auditing power consumption of single phase devices, evaluating load performances under varying line conditions, demonstrating the effectiveness of power conservation efforts, and characterizing device AC power requirements.

Notable Specifications:
  • Watt range: 200/2000W
  • Watt resolution: 0.1/1W
  • Watt basic accuracy: ±(0.9% + 4d)@50/60Hz
  • Watt input signal range: 300V, 20A, 40-400Hz
  • Power factor range: 0.5 to 1.0
  • Power factor resolution: 0.001
  • Power factor basic accuracy: (based on W, V, A)
  • Power factor input signal range: 250V, 20A, 50/60Hz
  • Voltage range: 200.0/750V
  • Voltage resolution: 0.1/1V
  • Voltage basic accuracy: ±(0.5%)
  • Voltage input signal range: 750VAC
  • Current range: 2/20A via terminals, 2/15A via sockets
  • Current basic accuracy: ±(0.5%)
  • Current input signal range: fuse protection
  • Frequency range: 40Hz to 20kHz 
  • Frequency resolution: 1Hz to 10Hz
  • Frequency basic accuracy: ±(0.5%)
  • Dimensions: 13.9 x 11.8 x 3.9" (352 x 300 x 100mm)
  • Weight: 3.6 lbs. (1.6 kg)
What's Included:
  • (1) Tester
  • (1) Windows compatible software
  • (1) Cable
  • (8) AA batteries
  • (1) Power cord
  • (1) 117 VAC adapter and case
Image Part # Product Description Price Stock Order
Extech Appliance Tester and Power Analyzer 380803 Appliance tester and power analyzer, datalogger function
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Extech Appliance Tester and Power Analyzer 380803-NIST Appliance tester and power analyzer, datalogger function, NIST traceable
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