RF MICROWAVE ABSORBING SHEET | 48" Wide X 1 Linear Foot Long RF Shielding Fabric for Smart Meters

Constructed a microwave oven shield with this product, a piece of corrugated cardboard and aluminum foil as seen on You Tube.Works great. No more interference with my WIFI and also the WIFI on the second floor. And this oven is quite new.

Tested this material with my phone in the local ambient signal environment at home using the signal strength bar graph on the phone and found no difference using this material.Other materials I've tested produce noticeable differences, including stepdown from 4G to 3G to 1G to unreceivable beyond the threshold of sensitivity and selectivity, so the method I use is reliable.This material makes nice padding but has no electrical electromagnetic attenuation or reflection effect.I had hoped to use it to attenuate electric meter wifi into the house. It's useless for this purpose or any other attenuation purpose by the results of my tests.

In my tests looking at 5GHz range Wi-Fi, I do get a decent drop -- maybe 20 dB according to my AP. The only thing is, this is with wrapping my phone in *4* layers all around. According to the spec sheet, each layer itself should be a 25 dB drop....So I guess it's OK in that it helps some, but it performs well below the spec. I tend to be wary of products with specs that are well off from observed performance.

The picture shown for this product is deceiving to what i received.Wow! Seems to be working

Seems to be working.