--- product_id: 5090455 title: "351B1 Counterfeit Bill Detector Marker Pen, Made in The USA, 3 Times More Ink, Pocket Size, Fake Money Checker - Money Loss Prevention Tester & Fraud Protection for U.S. Currency (Pack of 1)" brand: "dri mark" price: "€ 10.84" currency: EUR in_stock: true reviews_count: 13 category: "Dri Mark" url: https://www.desertcart.hr/products/5090455-351b1-counterfeit-bill-detector-marker-pen-made-in-the-usa store_origin: HR region: Croatia --- # Instant chemical detection on all US bills 3x more ink for extended use Made in the USA for trusted quality 351B1 Counterfeit Bill Detector Marker Pen, Made in The USA, 3 Times More Ink, Pocket Size, Fake Money Checker - Money Loss Prevention Tester & Fraud Protection for U.S. Currency (Pack of 1) **Brand:** dri mark **Price:** € 10.84 **Availability:** ✅ In Stock ## Summary > 🕵️‍♂️ Spot fakes before they spot you! ## Quick Answers - **What is this?** 351B1 Counterfeit Bill Detector Marker Pen, Made in The USA, 3 Times More Ink, Pocket Size, Fake Money Checker - Money Loss Prevention Tester & Fraud Protection for U.S. Currency (Pack of 1) by dri mark - **How much does it cost?** € 10.84 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/5090455-351b1-counterfeit-bill-detector-marker-pen-made-in-the-usa) ## Best For - dri mark enthusiasts ## Why This Product - Trusted dri mark brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Pocket-Sized Power:** Carry confidence everywhere with a sleek, compact design that fits right in your pocket. - • **Triple Ink Capacity:** Lasts three times longer than standard markers—more tests, less hassle. - • **Fraud Protection On-the-Go:** Empower your transactions and prevent money loss anytime, anywhere. - • **Instant Authenticity Check:** Chemical-sensitive ink reveals counterfeit bills in seconds with a simple mark. - • **Trusted US Currency Compatibility:** Works flawlessly on all US bills from 1959 onward—stay ahead of fraud. ## Overview The Dri Mark 351B1 Counterfeit Bill Detector Marker Pen is a pocket-sized, USA-made tool featuring three times more ink than standard markers. It uses chemically sensitive ink to instantly identify counterfeit US currency from 1959 onward, marking genuine bills amber and suspect bills dark brown or black. Trusted by professionals, it offers reliable fraud protection and money loss prevention in a sleek, easy-to-use design. ## Description desertcart.com : Dri Mark 351B1 Counterfeit Bill Detector Marker Pen, Made in The USA, 3 Times More Ink, Pocket Size, Fake Money Checker - Money Loss Prevention Tester & Fraud Protection for U.S. Currency (Pack of 1) : Currency Marker : Office Products Review: works - Good works Review: Seems okay to me - I tried it on some of my own money. Seems to be fine. I'm gonna pull out the pen when I get change at Walmart. Instead of them looking at the bills, I'm gonna look at the bills. ## Features - Simply make a small mark on U.S. currency. - Chemically sensitive ink works instantly. - Amber mark passes the test, while a dark brown or black mark means the bill is suspect. - Works on all new design U.S. currency (1959 and later). ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00006IE9P | | Best Sellers Rank | #2,924 in Office Products ( See Top 100 in Office Products ) #3 in Counterfeit Bill Detectors | | Brand | Dri Mark | | Color | Black | | Customer Reviews | 4.7 4.7 out of 5 stars (5,183) | | Date First Available | March 24, 2008 | | Is Discontinued By Manufacturer | No | | Item Weight | 0.48 ounces | | Item model number | 351B-1 | | Manufacturer | DRI-MARK PRODUCTS | | Manufacturer Part Number | 351B1 | | Material Type | Not Appilcable | | National Stock Number | 7520-01-386-1621 | | Number of Items | 1 | | Product Dimensions | 7.5 x 3.15 x 0.65 inches | | Size | 1 Pack | ## Images ![351B1 Counterfeit Bill Detector Marker Pen, Made in The USA, 3 Times More Ink, Pocket Size, Fake Money Checker - Money Loss Prevention Tester & Fraud Protection for U.S. Currency (Pack of 1) - Image 1](https://m.media-amazon.com/images/I/71cdU3mIIJL.jpg) ## Available Options This product comes in different **Size** options. ## Questions & Answers **Q: How does the Dri Mark Counterfeit Detector Pen work?** A: The iodine-based ink reacts with starch in fake bills, turning dark. On real U.S. currency (starch-free), the mark stays light. **Q: Can it detect foreign bills?** A: Standard pens are for U.S. bills only. Dri Mark’s Universal Pen can check some foreign currencies but not polymer bills. **Q: Is it effective on old and new bills?** A: Yes, it works on all U.S. bills since they all use the same cotton-linen paper without starch. **Q: Can counterfeiters fool the pen?** A: Advanced fakes using real paper (like bleached bills) may pass. Use UV lights or other tools for better security. **Q: How long does the pen last?** A: It lasts long due to a larger ink supply. Keep the cap on tightly and store it cool and dry to maximize life. ## Customer Reviews ### ⭐⭐⭐⭐⭐ works *by L***Z on November 10, 2025* Good works ### ⭐⭐⭐⭐⭐ Seems okay to me *by F***N on December 27, 2025* I tried it on some of my own money. Seems to be fine. I'm gonna pull out the pen when I get change at Walmart. Instead of them looking at the bills, I'm gonna look at the bills. ### ⭐⭐⭐⭐⭐ Satisfied. *by J***S on August 8, 2025* Good product and price! ## Frequently Bought Together - Dri Mark 351B1 Counterfeit Bill Detector Marker Pen, Made in The USA, 3 Times More Ink, Pocket Size, Fake Money Checker - Money Loss Prevention Tester & Fraud Protection for U.S. Currency (Pack of 1) - HVM Counterfeit Money Detector Pen (5 Counterfeit Pens) - Money Marker Bill Detector Pen with Upgraded Chisel Tip - Detect Fake Bills, Universal False Currency Checker Pack - Dri Mark Smart Money Counterfeit Detector Pen with Reusable UV LED Light (DRI351UVB) --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.hr/products/5090455-351b1-counterfeit-bill-detector-marker-pen-made-in-the-usa](https://www.desertcart.hr/products/5090455-351b1-counterfeit-bill-detector-marker-pen-made-in-the-usa) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-04-23*