Will plugging in a filter reduce the readings on other outlets on the same circuit, and/or on other circuits?

Yes and this is why the meter is valuable. I have plugged the filter in different locations to test for the best suppression.

Can i use my trifield 100xe instead of this?

No. You need a plug in meter. Like the Greenwave meter or an Oscilloscope thx!

Why do I need this device, if all it does is measure dirty electricity?

This meter is necessary to determine if you have dirty electricity in your home. Per Greenwave, if this meter measures over 50mv (to me 50mv is acceptable) it is considered to be dirty electricity putting out fields that are unhealthy. If you detect dirty electricity, then you purchase the filters from Greenwave. We had excessive dirty E when measured. Some rooms measured over 600mv. Keep in mind the measurements can vary throughout the day (and appliances operating). We measured one outlet in the bedroom that was approx 600mv, when we plugged in the filter and measured the outlet above it, it dropped below 50mv. Since we now have 2 filters in the bedroom and in other rooms, we are now sleeping better than ever - yes the dirty electricity was indeed interfering with our sleep and thus we are feeling better during waking hours. I hope this helps.

Is there an adapter to be able to check 220V lines i.e. furnace, dryer, water heater?

There is a way to do it...but you will have to ignore some electrical safety protocols. A 220 line is simply two 110 lines. Open up the receptacle and use jumpers from one hot line (110) and attach other jumper to ground. Then repeat for the other 110 line. Warning...live electricity...need I say more...careful.

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Greenwave Dirty Electricity Meter – Plug-in EMI Line Noise Meter

Greenwave Dirty Electricity Meter – Plug-in EMI Line Noise Meter

Product ID: 44428643

Details

Brand
Greenwave
Color
Black white
Item Weight
8 ounces
Power Source
Corded
Style
Electronic

⚡3 kHz–10 MHz frequency range

🎧Audio feedback for real-time EMI detection

🔌Plug-and-play ease

€ 184.55

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Description

⚡ Hear the noise, own the silence — master your electrical environment!

AUDIO NOISE MONITORING - Hear the invisible—listen to electrical noise and confirm filter effectiveness in real time.
DUAL DISPLAY COMPARISON - Simultaneously view 'Before' and 'After' filter EMI levels to track your progress effortlessly.
EMPOWER YOUR ENVIRONMENT - Identify hidden EMI hotspots and optimize filter placement for a cleaner, healthier space.
PRECISION FREQUENCY SWEEP - Covers a broad EMI spectrum from 3 kHz to 10 MHz for comprehensive dirty electricity detection.
INSTANT PLUG IN DIAGNOSTICS - No setup needed—just plug into any outlet and get immediate, clear millivolt readings.

The Greenwave Dirty Electricity Meter is a plug-in device that measures electrical noise (EMI) on building wiring across a wide frequency range (3 kHz to 10 MHz). It provides instant millivolt readings and features a unique audio function to listen to EMI levels, enabling users to easily compare conditions before and after installing filters. Compact and user-friendly, it empowers professionals and homeowners alike to identify and reduce harmful electrical interference for a safer, quieter environment.

Specifications

ASIN	B01MEFVYQD
Best Sellers Rank	#45,191 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #28 in EMF Meters
Brand Name	Greenwave
Color	Black, white
Customer Reviews	4.5 4.5 out of 5 stars (151)
Item Dimensions	5 x 4 x 3 inches
Item Weight	8 ounces
Manufacturer	Greenwave International, Inc.
Measurement Type	Voltmeter
Model	Broadband EMI Meter
Number of Items	1
Power Source	Corded Electric
Specification Met	RoHS, UL
Style Name	Electronic
UPC	700987683257

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€ 184.55

Duties & taxes included

In stock

Sold byAmazon IrelandDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Ireland.

Secure transaction

ProDesertcart PRO

Fast, free shipping, member pricing & priority support.

Join PRO →

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TrustScore 4.5 | 7,300+ reviews

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Excellent communication throughout the order process. Product is perfect.

2 weeks ago

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