MoneyTrust Counterfeit Pen - Money Detector Pen 12 Pack That detects Counterfeit Bills for US Dollars, Euro and British Pounds …

I've tried a lot of different brands of these, and this brand doesn't work.The mark is so faded you can barely see it.I'm realizing you get what you pay for with currency makers.

It is a deal for the price, I paid a lot more at those office stores , this pack will last a long time. It is so easy to use , the special ink with one mark on the bill , you can get a accurate result.

Love at work,it's keep the job I have to work a little faster

The marker didn't even work. Wasted money.

Did not like these. Not very good when marking money.

I bought these for a friend that just started their own small business to give their employees an easy and non-confrontational way to quickly check the authenticity of currency from daily customer transactions. I have gotten nothing but great feedback from all of them on the detectors usefulness.

Dried out , but still useable but not clear

Very hard to tell if it is saying good money or counterfeit