Features
  • Visual Measurement of AC Power Noise: This noise tester displays real-time AC voltage and noise voltage on an OLED screen. A numeric readout combined with a dynamic noise bar allows quick visual comparison of power quality across outlets or conditions.
  • Practical Reference Tool: Designed as an objective reference tool for comparing power conditions before and after using power conditioners or filters. Results should be evaluated alongside listening impressions, as different devices affect noise bands differently.  
  • Wideband Noise Detection: Designed to measure high-frequency AC noise from 10kHz to 10MHz, where switching power supplies, RF interference, and electrical devices generate noise. This range is typically not detectable with standard multimeters.  
  • Audible EMI Monitoring: A built-in speaker converts detected EMI into audible sound using amplitude demodulation. Changes in loudness help indicate noise intensity and possible sources, supporting quick comparison rather than absolute diagnosis.  
  • Plug-In Convenient Operation: Plugs directly into a wall outlet and requires no batteries or external power supply. Measurements start immediately, making it convenient for repeated testing of different sockets, power filters, or listening environments.  
Warm Tips:
 
This tester measures high-frequency AC noise from 10kHz to 10MHz. Some power filters may show limited effect or slight changes in this range. Readings are provided for reference only and should be evaluated together with overall system performance.  
Parameters
  • Input Voltage: AC 85V–250V, 50/60Hz
  • Voltage Accuracy: ±5% to ±10% (typical)
  • Noise Measurement Range: 1mV–1999mV
  • Measurement Frequency Range: 10kHz–10MHz
  • Measurement Accuracy:
    • ±5% @ 1MHz
    • +5% to −50% @ 10kHz–10MHz
  • Display Type: OLED dot matrix display
  • Dimensions: 132*91*41mm / 5.19*3.58*1.61in
  • Net Weight: 150g / 0.33lb
  • Package Weight: 210g / 0.46lb
Packing List
  • 1*AC Noise Tester
  • 1* AC Power Cord 
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