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.
AC Power Noise Tester Power Line Noise Meter for Audio Power Conditioner EMI
Item description
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
Safe and secure payment by PayPal.
The items are located in US, and will be shipped within 1 working day, 2-6 working days to deliver.
Free Return Within 30 Days
We provide free return with 30 days for all items you bought on eBay, full refund and return shipping will be provided.
1-year warranty is provided for all items(Excluding: 1. Man-made damage or misuse. 2. Audio accessories and consumables such as vacuum tubes).
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Douk Audio / Nobsound Studio was founded in 2013 in Shenzhen CHINA, we own several brands including Douk Audio / Nobsound / Little Bear etc.
As a professional audio company, we are dedicated to design and produce the best products at the lowest prices to make HiFi affordable.
We will spare no efforts to bring great products and service for customers and extremely to improve our customers’ listening experience.
Please don't hesitate to contact us if you have any questions or comments about our items. And our working time is from Monday to Friday between 9:00 am to 06:00 pm(Beijing Time), which means we can keep on-line at:
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During holiday, please allow us to response you early next week. Please don't leave any negative / neutral feedback or make dispute/claim on our non-working time, thank you for your understanding and cooperation.
