How a pocket flashlight detects counterfeit?

Though governments have improved the level of bill safety.Huge profits stir the counterfeiters to take risk and produce high level counterfeit money. It is really annoyed if receiving a fake money.We will share you how to detect fake money with a pocket flashlight today.

What you need is a pocket flashlight that can generate UV light.

Why UV pocket flashlight?

The sun produces infrared, ultraviolet, and visible light rays and each has different wavelengths. It is the length of these wavelengths that makes some light easy for us to see, and other light that is mostly undetectable to us unless we are using special equipment to view it. The light you see from the sun during the day has a longer wavelength and is therefore more visible than say ultraviolet light, which has a shorter wavelength. Ultraviolet light produces minimal visible light rays and is instead characterized by a deep blue or purple light ray that is most visible at night or when other light sources are blocked.The technological lighting components in UV pocket flashlight use the shorter and concentrated wavelength of ultraviolet lighting to illuminate small particles that are rendered nearly or completely invisible by the intensity of longer wavelengths of lighting.

How it works?

1.Hold the currency under the pocket flashlight and turn the black light on.

2.Find the denomination spelled out in the thread. In the 2007 and newer series of bills, the denomination is spelled out and repeated across the thread, separated by the letters "USA."

3.Look for the watermark portraits on the bill. There is a watermark of the denomination to the right and left of the portrait. Higher bills also have a watermark of the face on the right side of the bill. This watermark will only appear under a strong or black light by the pocket flashlight.

4.Shift the bill and watch the denomination numbers in the lower right-hand corner change color.

5.Search the bill for features that fluoresce or become fluorescent. The security thread will fluoresce, but other features on the bill such as the ink or paper shouldn't fluoresce.