--- product_id: 310974578 title: "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)" brand: "dri mark" price: "€ 19.15" currency: EUR in_stock: true reviews_count: 5 category: "Dri Mark" url: https://www.desertcart.gr/products/310974578-dri-mark-351b1-counterfeit-bill-detector-marker-pen-made-in store_origin: GR region: Greece --- # Pocket-sized for on-the-go Instant chemical reaction 3x more ink for extended use 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) **Brand:** dri mark **Price:** € 19.15 **Availability:** ✅ In Stock ## Summary > 🕵️‍♂️ Spot fakes fast, protect your stack! ## Quick Answers - **What is this?** 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) by dri mark - **How much does it cost?** € 19.15 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/310974578-dri-mark-351b1-counterfeit-bill-detector-marker-pen-made-in) ## 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 - • **Trusted & Proven:** Top-rated with 4.7 stars and a bestseller in counterfeit detection—join thousands who protect their cash. - • **Compact & Portable:** Slim, pocket-sized design fits seamlessly into your daily carry for quick access. - • **Triple Ink Capacity:** Lasts 3x longer than standard markers, so you never run out mid-check. - • **Instant Authenticity Check:** Chemically sensitive ink reveals counterfeit bills in seconds with a simple mark. - • **Universal Currency Compatibility:** Works flawlessly on all U.S. bills from 1959 onward—stay ahead of fraud. ## Overview The Dri Mark 351B1 Counterfeit Bill Detector Marker Pen is a pocket-sized, chemically sensitive tool made in the USA that instantly identifies fake U.S. currency by changing color. With 3 times more ink than standard pens, it offers long-lasting reliability and works on all bills from 1959 onward, making it an essential device for professionals who handle cash and want to prevent fraud effortlessly. ## Description Highly effective and inexpensive tool for detecting bad bills. Simply make a small mark on U.S. currency. Chemically sensitive ink works instantly. An amber mark passes the test, while a dark brown or black mark fails, meaning the bill is likely counterfeit. Works on all new design U.S. currency (bills series 1959 and later). Review: No funciona muy bien - Lo use en una hoja de maquina y marco negro. Luego lo use en un billete de dolar en tres puntos distintos y en todos dio un tono diferente. En lo personal, no me ayuda mucho Review: Fonctionne bien - Fonctionne bien ## 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 | #62,361 in Office Products ( See Top 100 in Office Products ) #27 in Counterfeit Bill Detectors | | Brand | Dri Mark | | Color | Black | | Customer Reviews | 4.7 4.7 out of 5 stars (3,836) | | Date First Available | 4 August 2012 | | Item Weight | 4.54 g | | Manufacturer | DRI-MARK PRODUCTS | | Manufacturer Part Number | 351B1 | | Material Type | Not Appilcable | | Model number | 351B-1 | | Number of Drawers | 2 | | Number of Items | 1 | | Product Dimensions | 19.05 x 8 x 1.65 cm; 4.54 g | | Size | 1 Pack | ## Images ![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) - Image 1](https://m.media-amazon.com/images/I/71cdU3mIIJL.jpg) ## 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 ### ⭐⭐⭐ No funciona muy bien *by F***G on 14 March 2019* Lo use en una hoja de maquina y marco negro. Luego lo use en un billete de dolar en tres puntos distintos y en todos dio un tono diferente. En lo personal, no me ayuda mucho ### ⭐⭐⭐⭐⭐ Fonctionne bien *by F***S on 25 February 2024* Fonctionne bien ### ⭐⭐⭐⭐⭐ Great price good quality. *by A***Z on 18 August 2022* After getting a fake 20 here in Canada we opted to get this to check USD this has saved us over $60 so far. Well worth the money ## 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.gr/products/310974578-dri-mark-351b1-counterfeit-bill-detector-marker-pen-made-in](https://www.desertcart.gr/products/310974578-dri-mark-351b1-counterfeit-bill-detector-marker-pen-made-in) --- *Product available on Desertcart Greece* *Store origin: GR* *Last updated: 2026-07-21*