Loading...

$ 0.00
0

$ 0.00

DTEK Counterfeit Detector Pens, U.S. Currency, 12/Pack
Accurate and affordable! The DTEK counterfeit pen is the classic screening tool as your first line of defense before moving on with other methods of counterfeit detection. A point-of-sale register with a visible counterfeit detection device is much more likely to deter individuals from attempting to use counterfeit bills. Ink changes color depending on the authenticity of the currency. Amber indicates legitimacy, while black or brown identifies it is counterfeit. Good on all U. S. currency 1959 and after. Antimicrobial protected, prevents the growth of odor-causing bacteria and fungus on the surface of the pen. Counterfeit Bill Detector Type: Pen; Marking Color: Amber; Counterfeit Indication Mark: Black; Brown; Currency: U. S. .

Item #:

CNK560507

Model #:

560507
Call for $
Email Friend
Check Availability
  • Quick and simple way to detect counterfeit bills.
  • Ink changes color depending on the authenticity of the currency. Amber indicates legitimacy, while black or brown identifies it is counterfeit.
  • Good on all U.S. currency 1959 and after.
  • Antimicrobial protected, prevents the growth of odor-causing bacteria and fungus on the surface of the pen.
  • WARNING: This product can expose you to Di(2-ethylhexyl)phthalate (DEHP), which is known to the State of California to cause Cancer and Birth Defect/Reproductive Harm. For more information go to www.P65Warnings.ca.gov.
UPSOK Proposition65

Product Detail

About this product
Accurate and affordable! The DTEK counterfeit pen is the classic screening tool as your first line of defense before moving on with other methods of counterfeit detection. A point-of-sale register with a visible counterfeit detection device is much more likely to deter individuals from attempting to use counterfeit bills. Ink changes color depending on the authenticity of the currency. Amber indicates legitimacy, while black or brown identifies it is counterfeit. Good on all U. S. currency 1959 and after. Antimicrobial protected, prevents the growth of odor-causing bacteria and fungus on the surface of the pen. Counterfeit Bill Detector Type: Pen; Marking Color: Amber; Counterfeit Indication Mark: Black; Brown; Currency: U. S. .
  • Quick and simple way to detect counterfeit bills.
  • Ink changes color depending on the authenticity of the currency. Amber indicates legitimacy, while black or brown identifies it is counterfeit.
  • Good on all U.S. currency 1959 and after.
  • Antimicrobial protected, prevents the growth of odor-causing bacteria and fungus on the surface of the pen.
  • WARNING: This product can expose you to Di(2-ethylhexyl)phthalate (DEHP), which is known to the State of California to cause Cancer and Birth Defect/Reproductive Harm. For more information go to www.P65Warnings.ca.gov.
Global Product Type Chem/Pen Counterfeit Bill Detectors
Currency U.S.
Counterfeit Indication Mark Black,Brown
Marking Color Amber
Counterfeit Bill Detector Type Pen
Color(s) Black
Width 0.5"
Depth 0.5"
Height 5.5"
Product Biodegradability Indicator N
Product Biodegradability in Days 0
Product Compostability Indicator N
Pre-Consumer Recycled Content Percent 0%
Post-Consumer Recycled Content Percent 0%
Total Recycled Content Percent 0%
UPC 813732012063
UPCCarton 00000000000000
UNSPSC 44111600
ProductClass BAGS,BANK AND MONEY HANDLING
BoxPackQuantity 0
BoxPackUnit
Country Of Origin CN
CartonPackQuantity 144
CartonPackUnit PK
Recommended For You
CNK560191
DTEK Counterfeit Detector Pens, ...
Accurate and affordable! The DTEK counterfeit pen ...
/ PK
Add To Cart

Customer Service

Feature Categories

Online Tools

(301) 340-1384

(301) 340-1543

customerservice@benjaminofficesupply.com

CNK560507 DTEK Counterfeit Detector Pens, U.S. Currency, 12/Pack Accurate and affordable! The DTEK counterfeit pen is the classic screening tool as your first line of defense before moving on with other methods of counterfeit detection. A point-of-sale register with a visible counterfeit detection device is much more likely to deter individuals from attempting to use counterfeit bills. Ink changes color depending on the authenticity of the currency. Amber indicates legitimacy, while black or brown identifies it is counterfeit. Good on all U. S. currency 1959 and after. Antimicrobial protected, prevents the growth of odor-causing bacteria and fungus on the surface of the pen. Counterfeit Bill Detector Type: Pen; Marking Color: Amber; Counterfeit Indication Mark: Black; Brown; Currency: U. S. . CNK560507 DTEK Counterfeit Detector Pens, U.S. Currency, 12/Pack Accurate and affordable! The DTEK counterfeit pen is the classic screening tool as your first line of defense before moving on with other methods of counterfeit detection. A point-of-sale register with a visible counterfeit detection device is much more likely to deter individuals from attempting to use counterfeit bills. Ink changes color depending on the authenticity of the currency. Amber indicates legitimacy, while black or brown identifies it is counterfeit. Good on all U. S. currency 1959 and after. Antimicrobial protected, prevents the growth of odor-causing bacteria and fungus on the surface of the pen. Counterfeit Bill Detector Type: Pen; Marking Color: Amber; Counterfeit Indication Mark: Black; Brown; Currency: U. S. . CNK560507 DTEK Counterfeit Detector Pens, U.S. Currency, 12/Pack Accurate and affordable! The DTEK counterfeit pen is the classic screening tool as your first line of defense before moving on with other methods of counterfeit detection. A point-of-sale register with a visible counterfeit detection device is much more likely to deter individuals from attempting to use counterfeit bills. Ink changes color depending on the authenticity of the currency. Amber indicates legitimacy, while black or brown identifies it is counterfeit. Good on all U. S. currency 1959 and after. Antimicrobial protected, prevents the growth of odor-causing bacteria and fungus on the surface of the pen. Counterfeit Bill Detector Type: Pen; Marking Color: Amber; Counterfeit Indication Mark: Black; Brown; Currency: U. S. . CNK560507 DTEK Counterfeit Detector Pens, U.S. Currency, 12/Pack Accurate and affordable! The DTEK counterfeit pen is the classic screening tool as your first line of defense before moving on with other methods of counterfeit detection. A point-of-sale register with a visible counterfeit detection device is much more likely to deter individuals from attempting to use counterfeit bills. Ink changes color depending on the authenticity of the currency. Amber indicates legitimacy, while black or brown identifies it is counterfeit. Good on all U. S. currency 1959 and after. Antimicrobial protected, prevents the growth of odor-causing bacteria and fungus on the surface of the pen. Counterfeit Bill Detector Type: Pen; Marking Color: Amber; Counterfeit Indication Mark: Black; Brown; Currency: U. S. . CNK560507 DTEK Counterfeit Detector Pens, U.S. Currency, 12/Pack Accurate and affordable! The DTEK counterfeit pen is the classic screening tool as your first line of defense before moving on with other methods of counterfeit detection. A point-of-sale register with a visible counterfeit detection device is much more likely to deter individuals from attempting to use counterfeit bills. Ink changes color depending on the authenticity of the currency. Amber indicates legitimacy, while black or brown identifies it is counterfeit. Good on all U. S. currency 1959 and after. Antimicrobial protected, prevents the growth of odor-causing bacteria and fungus on the surface of the pen. Counterfeit Bill Detector Type: Pen; Marking Color: Amber; Counterfeit Indication Mark: Black; Brown; Currency: U. S. . CNK560507 DTEK Counterfeit Detector Pens, U.S. Currency, 12/Pack Accurate and affordable! The DTEK counterfeit pen is the classic screening tool as your first line of defense before moving on with other methods of counterfeit detection. A point-of-sale register with a visible counterfeit detection device is much more likely to deter individuals from attempting to use counterfeit bills. Ink changes color depending on the authenticity of the currency. Amber indicates legitimacy, while black or brown identifies it is counterfeit. Good on all U. S. currency 1959 and after. Antimicrobial protected, prevents the growth of odor-causing bacteria and fungus on the surface of the pen. Counterfeit Bill Detector Type: Pen; Marking Color: Amber; Counterfeit Indication Mark: Black; Brown; Currency: U. S. . CNK560507 DTEK Counterfeit Detector Pens, U.S. Currency, 12/Pack Accurate and affordable! The DTEK counterfeit pen is the classic screening tool as your first line of defense before moving on with other methods of counterfeit detection. A point-of-sale register with a visible counterfeit detection device is much more likely to deter individuals from attempting to use counterfeit bills. Ink changes color depending on the authenticity of the currency. Amber indicates legitimacy, while black or brown identifies it is counterfeit. Good on all U. S. currency 1959 and after. Antimicrobial protected, prevents the growth of odor-causing bacteria and fungus on the surface of the pen. Counterfeit Bill Detector Type: Pen; Marking Color: Amber; Counterfeit Indication Mark: Black; Brown; Currency: U. S. . CNK560507 DTEK Counterfeit Detector Pens, U.S. Currency, 12/Pack Accurate and affordable! The DTEK counterfeit pen is the classic screening tool as your first line of defense before moving on with other methods of counterfeit detection. A point-of-sale register with a visible counterfeit detection device is much more likely to deter individuals from attempting to use counterfeit bills. Ink changes color depending on the authenticity of the currency. Amber indicates legitimacy, while black or brown identifies it is counterfeit. Good on all U. S. currency 1959 and after. Antimicrobial protected, prevents the growth of odor-causing bacteria and fungus on the surface of the pen. Counterfeit Bill Detector Type: Pen; Marking Color: Amber; Counterfeit Indication Mark: Black; Brown; Currency: U. S. . CNK560507 DTEK Counterfeit Detector Pens, U.S. Currency, 12/Pack Accurate and affordable! The DTEK counterfeit pen is the classic screening tool as your first line of defense before moving on with other methods of counterfeit detection. A point-of-sale register with a visible counterfeit detection device is much more likely to deter individuals from attempting to use counterfeit bills. Ink changes color depending on the authenticity of the currency. Amber indicates legitimacy, while black or brown identifies it is counterfeit. Good on all U. S. currency 1959 and after. Antimicrobial protected, prevents the growth of odor-causing bacteria and fungus on the surface of the pen. Counterfeit Bill Detector Type: Pen; Marking Color: Amber; Counterfeit Indication Mark: Black; Brown; Currency: U. S. . CNK560507 DTEK Counterfeit Detector Pens, U.S. Currency, 12/Pack Accurate and affordable! The DTEK counterfeit pen is the classic screening tool as your first line of defense before moving on with other methods of counterfeit detection. A point-of-sale register with a visible counterfeit detection device is much more likely to deter individuals from attempting to use counterfeit bills. Ink changes color depending on the authenticity of the currency. Amber indicates legitimacy, while black or brown identifies it is counterfeit. Good on all U. S. currency 1959 and after. Antimicrobial protected, prevents the growth of odor-causing bacteria and fungus on the surface of the pen. Counterfeit Bill Detector Type: Pen; Marking Color: Amber; Counterfeit Indication Mark: Black; Brown; Currency: U. S. . CNK560507 DTEK Counterfeit Detector Pens, U.S. Currency, 12/Pack Accurate and affordable! The DTEK counterfeit pen is the classic screening tool as your first line of defense before moving on with other methods of counterfeit detection. A point-of-sale register with a visible counterfeit detection device is much more likely to deter individuals from attempting to use counterfeit bills. Ink changes color depending on the authenticity of the currency. Amber indicates legitimacy, while black or brown identifies it is counterfeit. Good on all U. S. currency 1959 and after. Antimicrobial protected, prevents the growth of odor-causing bacteria and fungus on the surface of the pen. Counterfeit Bill Detector Type: Pen; Marking Color: Amber; Counterfeit Indication Mark: Black; Brown; Currency: U. S. . CNK560507 DTEK Counterfeit Detector Pens, U.S. Currency, 12/Pack Accurate and affordable! The DTEK counterfeit pen is the classic screening tool as your first line of defense before moving on with other methods of counterfeit detection. A point-of-sale register with a visible counterfeit detection device is much more likely to deter individuals from attempting to use counterfeit bills. Ink changes color depending on the authenticity of the currency. Amber indicates legitimacy, while black or brown identifies it is counterfeit. Good on all U. S. currency 1959 and after. Antimicrobial protected, prevents the growth of odor-causing bacteria and fungus on the surface of the pen. Counterfeit Bill Detector Type: Pen; Marking Color: Amber; Counterfeit Indication Mark: Black; Brown; Currency: U. S. . CNK560507 DTEK Counterfeit Detector Pens, U.S. Currency, 12/Pack Accurate and affordable! The DTEK counterfeit pen is the classic screening tool as your first line of defense before moving on with other methods of counterfeit detection. A point-of-sale register with a visible counterfeit detection device is much more likely to deter individuals from attempting to use counterfeit bills. Ink changes color depending on the authenticity of the currency. Amber indicates legitimacy, while black or brown identifies it is counterfeit. Good on all U. S. currency 1959 and after. Antimicrobial protected, prevents the growth of odor-causing bacteria and fungus on the surface of the pen. Counterfeit Bill Detector Type: Pen; Marking Color: Amber; Counterfeit Indication Mark: Black; Brown; Currency: U. S. . CNK560507 DTEK Counterfeit Detector Pens, U.S. Currency, 12/Pack Accurate and affordable! The DTEK counterfeit pen is the classic screening tool as your first line of defense before moving on with other methods of counterfeit detection. A point-of-sale register with a visible counterfeit detection device is much more likely to deter individuals from attempting to use counterfeit bills. Ink changes color depending on the authenticity of the currency. Amber indicates legitimacy, while black or brown identifies it is counterfeit. Good on all U. S. currency 1959 and after. Antimicrobial protected, prevents the growth of odor-causing bacteria and fungus on the surface of the pen. Counterfeit Bill Detector Type: Pen; Marking Color: Amber; Counterfeit Indication Mark: Black; Brown; Currency: U. S. . CNK560507 DTEK Counterfeit Detector Pens, U.S. Currency, 12/Pack Accurate and affordable! The DTEK counterfeit pen is the classic screening tool as your first line of defense before moving on with other methods of counterfeit detection. A point-of-sale register with a visible counterfeit detection device is much more likely to deter individuals from attempting to use counterfeit bills. Ink changes color depending on the authenticity of the currency. Amber indicates legitimacy, while black or brown identifies it is counterfeit. Good on all U. S. currency 1959 and after. Antimicrobial protected, prevents the growth of odor-causing bacteria and fungus on the surface of the pen. Counterfeit Bill Detector Type: Pen; Marking Color: Amber; Counterfeit Indication Mark: Black; Brown; Currency: U. S. . CNK560507 DTEK Counterfeit Detector Pens, U.S. Currency, 12/Pack Accurate and affordable! The DTEK counterfeit pen is the classic screening tool as your first line of defense before moving on with other methods of counterfeit detection. A point-of-sale register with a visible counterfeit detection device is much more likely to deter individuals from attempting to use counterfeit bills. Ink changes color depending on the authenticity of the currency. Amber indicates legitimacy, while black or brown identifies it is counterfeit. Good on all U. S. currency 1959 and after. Antimicrobial protected, prevents the growth of odor-causing bacteria and fungus on the surface of the pen. Counterfeit Bill Detector Type: Pen; Marking Color: Amber; Counterfeit Indication Mark: Black; Brown; Currency: U. S. . CNK560507 DTEK Counterfeit Detector Pens, U.S. Currency, 12/Pack Accurate and affordable! The DTEK counterfeit pen is the classic screening tool as your first line of defense before moving on with other methods of counterfeit detection. A point-of-sale register with a visible counterfeit detection device is much more likely to deter individuals from attempting to use counterfeit bills. Ink changes color depending on the authenticity of the currency. Amber indicates legitimacy, while black or brown identifies it is counterfeit. Good on all U. S. currency 1959 and after. Antimicrobial protected, prevents the growth of odor-causing bacteria and fungus on the surface of the pen. Counterfeit Bill Detector Type: Pen; Marking Color: Amber; Counterfeit Indication Mark: Black; Brown; Currency: U. S. . CNK560507 DTEK Counterfeit Detector Pens, U.S. Currency, 12/Pack Accurate and affordable! The DTEK counterfeit pen is the classic screening tool as your first line of defense before moving on with other methods of counterfeit detection. A point-of-sale register with a visible counterfeit detection device is much more likely to deter individuals from attempting to use counterfeit bills. Ink changes color depending on the authenticity of the currency. Amber indicates legitimacy, while black or brown identifies it is counterfeit. Good on all U. S. currency 1959 and after. Antimicrobial protected, prevents the growth of odor-causing bacteria and fungus on the surface of the pen. Counterfeit Bill Detector Type: Pen; Marking Color: Amber; Counterfeit Indication Mark: Black; Brown; Currency: U. S. . CNK560507 DTEK Counterfeit Detector Pens, U.S. Currency, 12/Pack Accurate and affordable! The DTEK counterfeit pen is the classic screening tool as your first line of defense before moving on with other methods of counterfeit detection. A point-of-sale register with a visible counterfeit detection device is much more likely to deter individuals from attempting to use counterfeit bills. Ink changes color depending on the authenticity of the currency. Amber indicates legitimacy, while black or brown identifies it is counterfeit. Good on all U. S. currency 1959 and after. Antimicrobial protected, prevents the growth of odor-causing bacteria and fungus on the surface of the pen. Counterfeit Bill Detector Type: Pen; Marking Color: Amber; Counterfeit Indication Mark: Black; Brown; Currency: U. S. . CNK560507 DTEK Counterfeit Detector Pens, U.S. Currency, 12/Pack Accurate and affordable! The DTEK counterfeit pen is the classic screening tool as your first line of defense before moving on with other methods of counterfeit detection. A point-of-sale register with a visible counterfeit detection device is much more likely to deter individuals from attempting to use counterfeit bills. Ink changes color depending on the authenticity of the currency. Amber indicates legitimacy, while black or brown identifies it is counterfeit. Good on all U. S. currency 1959 and after. Antimicrobial protected, prevents the growth of odor-causing bacteria and fungus on the surface of the pen. Counterfeit Bill Detector Type: Pen; Marking Color: Amber; Counterfeit Indication Mark: Black; Brown; Currency: U. S. . CNK560507 DTEK Counterfeit Detector Pens, U.S. Currency, 12/Pack Accurate and affordable! The DTEK counterfeit pen is the classic screening tool as your first line of defense before moving on with other methods of counterfeit detection. A point-of-sale register with a visible counterfeit detection device is much more likely to deter individuals from attempting to use counterfeit bills. Ink changes color depending on the authenticity of the currency. Amber indicates legitimacy, while black or brown identifies it is counterfeit. Good on all U. S. currency 1959 and after. Antimicrobial protected, prevents the growth of odor-causing bacteria and fungus on the surface of the pen. Counterfeit Bill Detector Type: Pen; Marking Color: Amber; Counterfeit Indication Mark: Black; Brown; Currency: U. S. . CNK560507 DTEK Counterfeit Detector Pens, U.S. Currency, 12/Pack Accurate and affordable! The DTEK counterfeit pen is the classic screening tool as your first line of defense before moving on with other methods of counterfeit detection. A point-of-sale register with a visible counterfeit detection device is much more likely to deter individuals from attempting to use counterfeit bills. Ink changes color depending on the authenticity of the currency. Amber indicates legitimacy, while black or brown identifies it is counterfeit. Good on all U. S. currency 1959 and after. Antimicrobial protected, prevents the growth of odor-causing bacteria and fungus on the surface of the pen. Counterfeit Bill Detector Type: Pen; Marking Color: Amber; Counterfeit Indication Mark: Black; Brown; Currency: U. S. . CNK560507 DTEK Counterfeit Detector Pens, U.S. Currency, 12/Pack Accurate and affordable! The DTEK counterfeit pen is the classic screening tool as your first line of defense before moving on with other methods of counterfeit detection. A point-of-sale register with a visible counterfeit detection device is much more likely to deter individuals from attempting to use counterfeit bills. Ink changes color depending on the authenticity of the currency. Amber indicates legitimacy, while black or brown identifies it is counterfeit. Good on all U. S. currency 1959 and after. Antimicrobial protected, prevents the growth of odor-causing bacteria and fungus on the surface of the pen. Counterfeit Bill Detector Type: Pen; Marking Color: Amber; Counterfeit Indication Mark: Black; Brown; Currency: U. S. . CNK560507 DTEK Counterfeit Detector Pens, U.S. Currency, 12/Pack Accurate and affordable! The DTEK counterfeit pen is the classic screening tool as your first line of defense before moving on with other methods of counterfeit detection. A point-of-sale register with a visible counterfeit detection device is much more likely to deter individuals from attempting to use counterfeit bills. Ink changes color depending on the authenticity of the currency. Amber indicates legitimacy, while black or brown identifies it is counterfeit. Good on all U. S. currency 1959 and after. Antimicrobial protected, prevents the growth of odor-causing bacteria and fungus on the surface of the pen. Counterfeit Bill Detector Type: Pen; Marking Color: Amber; Counterfeit Indication Mark: Black; Brown; Currency: U. S. . CNK560507 DTEK Counterfeit Detector Pens, U.S. Currency, 12/Pack Accurate and affordable! The DTEK counterfeit pen is the classic screening tool as your first line of defense before moving on with other methods of counterfeit detection. A point-of-sale register with a visible counterfeit detection device is much more likely to deter individuals from attempting to use counterfeit bills. Ink changes color depending on the authenticity of the currency. Amber indicates legitimacy, while black or brown identifies it is counterfeit. Good on all U. S. currency 1959 and after. Antimicrobial protected, prevents the growth of odor-causing bacteria and fungus on the surface of the pen. Counterfeit Bill Detector Type: Pen; Marking Color: Amber; Counterfeit Indication Mark: Black; Brown; Currency: U. S. . CNK560507 DTEK Counterfeit Detector Pens, U.S. Currency, 12/Pack Accurate and affordable! The DTEK counterfeit pen is the classic screening tool as your first line of defense before moving on with other methods of counterfeit detection. A point-of-sale register with a visible counterfeit detection device is much more likely to deter individuals from attempting to use counterfeit bills. Ink changes color depending on the authenticity of the currency. Amber indicates legitimacy, while black or brown identifies it is counterfeit. Good on all U. S. currency 1959 and after. Antimicrobial protected, prevents the growth of odor-causing bacteria and fungus on the surface of the pen. Counterfeit Bill Detector Type: Pen; Marking Color: Amber; Counterfeit Indication Mark: Black; Brown; Currency: U. S. . CNK560507 DTEK Counterfeit Detector Pens, U.S. Currency, 12/Pack Accurate and affordable! The DTEK counterfeit pen is the classic screening tool as your first line of defense before moving on with other methods of counterfeit detection. A point-of-sale register with a visible counterfeit detection device is much more likely to deter individuals from attempting to use counterfeit bills. Ink changes color depending on the authenticity of the currency. Amber indicates legitimacy, while black or brown identifies it is counterfeit. Good on all U. S. currency 1959 and after. Antimicrobial protected, prevents the growth of odor-causing bacteria and fungus on the surface of the pen. Counterfeit Bill Detector Type: Pen; Marking Color: Amber; Counterfeit Indication Mark: Black; Brown; Currency: U. S. . CNK560507 DTEK Counterfeit Detector Pens, U.S. Currency, 12/Pack Accurate and affordable! The DTEK counterfeit pen is the classic screening tool as your first line of defense before moving on with other methods of counterfeit detection. A point-of-sale register with a visible counterfeit detection device is much more likely to deter individuals from attempting to use counterfeit bills. Ink changes color depending on the authenticity of the currency. Amber indicates legitimacy, while black or brown identifies it is counterfeit. Good on all U. S. currency 1959 and after. Antimicrobial protected, prevents the growth of odor-causing bacteria and fungus on the surface of the pen. Counterfeit Bill Detector Type: Pen; Marking Color: Amber; Counterfeit Indication Mark: Black; Brown; Currency: U. S. . CNK560507 DTEK Counterfeit Detector Pens, U.S. Currency, 12/Pack Accurate and affordable! The DTEK counterfeit pen is the classic screening tool as your first line of defense before moving on with other methods of counterfeit detection. A point-of-sale register with a visible counterfeit detection device is much more likely to deter individuals from attempting to use counterfeit bills. Ink changes color depending on the authenticity of the currency. Amber indicates legitimacy, while black or brown identifies it is counterfeit. Good on all U. S. currency 1959 and after. Antimicrobial protected, prevents the growth of odor-causing bacteria and fungus on the surface of the pen. Counterfeit Bill Detector Type: Pen; Marking Color: Amber; Counterfeit Indication Mark: Black; Brown; Currency: U. S. . CNK560507 DTEK Counterfeit Detector Pens, U.S. Currency, 12/Pack Accurate and affordable! The DTEK counterfeit pen is the classic screening tool as your first line of defense before moving on with other methods of counterfeit detection. A point-of-sale register with a visible counterfeit detection device is much more likely to deter individuals from attempting to use counterfeit bills. Ink changes color depending on the authenticity of the currency. Amber indicates legitimacy, while black or brown identifies it is counterfeit. Good on all U. S. currency 1959 and after. Antimicrobial protected, prevents the growth of odor-causing bacteria and fungus on the surface of the pen. Counterfeit Bill Detector Type: Pen; Marking Color: Amber; Counterfeit Indication Mark: Black; Brown; Currency: U. S. .