Conductivity Test Pen, Grounding Tester, Continuity Tester for Grounding Mats, Sheets, Pads, Blankets, Pillow Cases. Use to Test Effectiveness of Earth Connected Products.

Works great. Easy to use.

Wow I’m super impressed. Very well made great quality and got here the next day I’m going to buy more for myself and my family can’t beat the price is great quality is great and super fast delivery plus customer service is fantastic. It’s a win win situation. I highly recommend Amazon. I’m definitely only shopping with them from now on I won’t have to wait for weeks and get broken items with them i feel more comfortable that I will receive top quality products for the best price and super fast delivery thanks ⭐️⭐️⭐️⭐️⭐️

Works excelente

I should have read the previous reviews. My pen arrived and didn't work. Likely the battery. You get what you paid for.

Why did you pick this product vs others?:It works I often give two mats to friends in pain. One for their bed and one for their recliner.

I like it

What you're getting isn't anything overly complicated, but it works. You're completing a circuit powered by the button batteries that are provided and already inside; if the light comes on, electricity can flow through the object. Disassembly is simple, you pry open the plastic red lid, and remove a small plastic circle at the base of the two metal rods that help hold them in place. Everything inside and out looks as shown in the product photos. With mine, the rods themselves were uneven, and I didn't have as much luck pressing them straight down to test over holding them at an angle. Regardless, it works well enough as does as advertised.

This pen works well to let you know that your mat is conducting as you would like for it to work. It is very easy, simply touch the double prongs directly to the mat and the top of the pen will light up. You may have to remove a cover off the double prong but after using the pen it is easy to slide the cover over the prong to put it away for the next time.