

How does the Dri Mark Counterfeit Detector Pen work?
The iodine-based ink reacts with starch in fake bills, turning dark. On real U.S. currency (starch-free), the mark stays light.
Can it detect foreign bills?
Standard pens are for U.S. bills only. Dri Mark’s Universal Pen can check some foreign currencies but not polymer bills.
Is it effective on old and new bills?
Yes, it works on all U.S. bills since they all use the same cotton-linen paper without starch.
Can counterfeiters fool the pen?
Advanced fakes using real paper (like bleached bills) may pass. Use UV lights or other tools for better security.
How long does the pen last?
It lasts long due to a larger ink supply. Keep the cap on tightly and store it cool and dry to maximize life.
Compare with Drimark
Quick Test Pen | Detailed Use | UV & Pen |
Paper Test | Detection Methods | UV, Paper |
Yes | Made In the USA | Yes |
Long-lasting ink | Feature | Double detection |
Nontoxic & portable | Feature | Quick Test Pen |
Quick Test Pen | Detailed Use | Antimicrobial barrel |
Paper Test | Detection Methods | Paper Test |
Yes | Made In the USA | Yes |
Long-lasting ink | Feature | Kills 99% of germs |
Nontoxic & portable | Feature | Ideal for shared use |
Quick Test Pen | Detailed Use | Instant flash check |
Paper Test | Detection Methods | Ink, UV, Watermark |
Yes | Made In the USA | No |
Long-lasting ink | Feature | Pocketsize with clip |
Nontoxic & portable | Feature | Ideal for retail |
Quick Test Pen | Detailed Use | UV, MG, WM scanner |
Paper Test | Detection Methods | Paper, UV, Watermark |
Yes | Made In the USA | No |
Long-lasting ink | Feature | Audible/visual alert |
Nontoxic & portable | Feature | Portal |
Choosing the Correct Detector Device for You & your Business
DriMark Counterfeit Pen
counterfeit Pen
Merchant VideoUSA Superior Quality and Durability
Dri Mark is the only U.S. manufacturer and original patent holder of counterfeit detector pens.
How does the Dri Mark Counterfeit Detector Pen work?
The iodine-based ink reacts with starch in fake bills, turning dark. On real U.S. currency (starch-free), the mark stays light.
Can it detect foreign bills?
Standard pens are for U.S. bills only. Dri Mark’s Universal Pen can check some foreign currencies but not polymer bills.
Is it effective on old and new bills?
Yes, it works on all U.S. bills since they all use the same cotton-linen paper without starch.
Can counterfeiters fool the pen?
Advanced fakes using real paper (like bleached bills) may pass. Use UV lights or other tools for better security.
How long does the pen last?
It lasts long due to a larger ink supply. Keep the cap on tightly and store it cool and dry to maximize life.
Smaller pen, 3 times the ink
2 TESTS IN 1- PROTECT YOUR PROFITS
3 COUNTERFEIT BILL DETECTION TESTS IN ONE
FRAUD DETECTION
Dri Mark's "Pocket Size" Counterfeit Bill Detector Pen has 3 times the ink and is almost an inch shorter than previous models.
Security strip test: powerful UV light is embedded in the cap and is easy to activate; The LED bulb reveals the hidden security stripe found in all 5 dollar bills and higher.
WATERMARK, INK TEST, AND SECURITY STRIP: Hold the bill over the lighted panel to see the watermark, pass the front of the bill over the front sensor to detect the ink.
UV Light is great for authenticating passports, credit cards, traveler’s checks, driver's licenses & other official documents.
Compare with Drimark
Choosing the Correct Detector Device for You & your Business
Counterfeit Pen
The Dri Mark pen detects fake bills by reacting to starch in wood-based paper, marking dark if fake.
UV Detection
Pen marks dark on fake bills; UV light in cap checks security threads to confirm authenticity.
Detection Machine
The Dri Mark Flash Test detects fake bills using ink, watermark, and UV light tests.































































