UCW1002Mark a line on bill. If amber mark turns black or dark brown, the bill is suspect. Counterfeit Bill Detector Type: Pen; Global Product Type: Counterfeit Bill Detectors; Marking Color: Amber; Counterfeit Indication Mark: Black; Dark Brown. PRODUCT DETAILS: * Counterfeit Indication Mark: Black, Dark Brown * Counterfeit Bill Detector Type: Pen * Global Product Type: Counterfeit Bill Detectors * Post-Consumer Recycled Content Percent : 0 pct * Marking Color: Amber * Pre-Consumer Recycled Content Percent : 0 pct * Currency: U.S. * Total Recycled Content Percent : 0 pct * Pen Features: Clip, Coil