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 Broadband EMI Dirty Electricity Meter

Greenwave Broadband EMI Dirty Electricity Meter

Product ID: 44428643

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Details

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

🎧Audio feature to hear EMI levels

📶3 kHz–10 MHz frequency range

🔌Plug-and-play outlet design

Description

🔍 Hear the hidden buzz—take control of your power quality today!

AUDIO EMI MONITORING - Hear the invisible electrical noise decrease as you install filters—turn data into experience.
COMPACT LIGHTWEIGHT - Ultra-slim design at just 0.01 ounces fits discreetly anywhere without clutter.
INSTANT PLUG AND PLAY USE - Simply plug into any outlet—no setup, no hassle, just instant insights.
BROADBAND FREQUENCY DETECTION - Covers a wide 3 kHz to 10 MHz EMI spectrum for precise dirty electricity measurement.
FILTER EFFECTIVENESS COMPARISON - Easily compare EMI levels before and after filter installation to optimize your environment.

The Greenwave Broadband EMI Dirty Electricity Meter is a compact, plug-in device that measures electrical noise across a broad frequency range (3 kHz to 10 MHz). Featuring an intuitive audio function, it allows users to audibly monitor EMI levels and assess the effectiveness of dirty electricity filters in real time. Designed for easy use and precise measurement, it’s a must-have tool for professionals seeking healthier, cleaner electrical environments.

Specifications

Brand	Greenwave
Power Source	Corded Electric
Style	Electronic
Color	white, Black
Item Weight	0.01 Ounces
Item dimensions L x W x H	2.5 x 1 x 305 inches
Specification Met	UL, RoHS
UPC	700987683257
Manufacturer	Greenwave International, Inc.
Product Dimensions	2.5 x 1 x 305 inches
Item Weight	0.01 ounces
ASIN	B01MEFVYQD
Country of Origin	USA
Item model number	Broadband EMI Meter
Is Discontinued By Manufacturer	No
Date First Available	October 16, 2016

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