Feature: 1. 2-In-1 Design: With UV light detection function and water-based pen mark detection function, can be used to detect various paper currency and mark them. 2. Wide Application: Can be used to verify multinational banknotes, including Pound, Euro, Dollar, Peso, Yen, Won, Rand, Ruble, Peseta, NT Dollar, Baht, Cruzior and other banknotes with watermark. 3. Easy Operation: Marking the note, for example, with a cross,in an area which is lightly-colored and not printed on, if the marking shows up as bright yellow, your banknote is genuine and therefore valid, If the marking goes dark and stays dark, your banknote is forged. 4. Portable: Mini size design, net weight only 17g, super light weight, can be put in your bag to carry easily. 5. Detection Function: The UV light can be used to detect the presence of fluorescent agents in cosmetics or baby products. Specification: Features: 2-In-1 Design: With UV light detection function and water-based pen mark detection function, can be used to detect various paper currency and mark them. Wide Application: Can be used to verify multinational banknotes, including Pound, Euro, Dollar, Peso, Yen, Korean Won, Rand, Ruble, Peseta, NT Dollar, Baht, Cruzior and other banknotes with watermark. Easy Operation: Marking the note, for example, with a cross,in an area which is lightly-colored and not printed on, if the marking shows up as bright yellow, your banknote is genuine and therefore valid, If the marking goes dark and stays dark, your banknote is forged. Portable: Mini size design, net weight only 17g, super light weight, can be put in your bag to carry easily. Detection Function: The UV light can be used to detect the presence of fluorescent agents in cosmetics or baby products. Specification: Quantity: 1pcs Color: Blue Suitable: For Pound, Euro, US Dollar, Peso, Yen, Korean Won, Rand, Ruble, Peseta, NT Dollar, Baht, Cruzior, etc. Battery: 3pcs LR1130 Button Battery 1.5V 65mAh (Included) Item Size(L * D): 12.9 * 1.6cm / 5.1 * 0.6in Item Weight: 17g / 0.6oz Package Size: 20.5 * 8.2 * 2.2cm / 8.1 * 3.2 * 0.9in Package Weight: 26g / 0.9oz Note: 1. Only the money detector pen is included. 2. Please take out the insulation plastic sheet before using the UV light. 3. Not support the detection of plastic currency and coin. Package List: 1 * Money Detector Pen Package List: 1 * Money Detector Pen