GSM Brands Counterfeit Money Bill Detector Pens, Markers - Detects Fake Currency - 12 Pack

Extremely satisfied with these markers. Each one has alot of fluid inside so they flow correctly and easily when using them to test 50 and 100 dollar bills. They've performed properly on every bill so far, and on normal paper the markers clearly print as dark gray, meaning it's not currency. Highly recommend these security markers!

Works great to ensure the money is not counterfeit.

I have over 12 staff member that from time to time handle large bills over 20$ this is a great time saver once they do the standard procedure that I can review when it slower time of day

They work wonderful as long as you do not write on paper with them. When used on regular paper or counterfeit money the pen is no longer as effective. For us it is a still a great buy. We have saved 1000s on counterfeit money over the years. These are great. They come in quickly and are labeled on the pen what it is used for, and we have had several customers change payment methods. Not sure they had counterfeit money or just changed their mind about paying with cash.

I am so absolutely grateful and thankful I found this deal. The company I work for never sends them out. I order them every week since becoming the store manager (April of 2023) never received any. I’ve been buying them in 2 packs for just as much at Walmart. This is a way better deal and exactly the same quality if not better.

Muy buenas para detectar si no falsos o verdaderos . Excelente precio por la caja

We had someone present a $100 at our market. Everything looked good as far as security features however we noticed that the paper felt funny. And the pen caught this fake $100 and turned black. Thank goodness. Saved us a major mistake. Now we check all bills $20 and up.

I have tried numerous counterfeit pens and I like this one because it shows gold for good and black for bad. Having a color when marking makes it so much easier. And the big tip is so much better than a smaller one in my opinion. The small tips usually get jammed back into the pen and these bigger tips are better