Tylson Designed Conductive Tester. Works on any Grounded Fabric.

Works as advertised. It was a good investment for me because I have many earthing products and it gives me a peace of mind to be able to check to make sure they are working after using them over the years.

When I tested it, the light did not come on. It was not working upon arrival. I don't have time to open up this item, buy a battery, replace the battery, and put it back together and HOPE it will work then. I bought it so I could use it upon arrival. If the batteries go dead they should ship it differently. Will reorder from a different company.

This item worked very well in that it let me know my earthing mats were working.It will also be great to be able to check them in the future as they age.

Works exactly how it is supposed to work. I use it on my earthing sheets and mats to make sure they are working.

It works and that is what counts.