HQRP 365 nM UV 12 LED Flashlight plus HQRP UV Chain / UV Radiation Health Meter. This UV flashlight specially designed for Home Security and Anti-theft / Club and Bar Security. Also perfect for verify the money, checks on the authenticity of documents, inspection glass for defects and cracks, checking leaks in cooling systems (with dyes), scorpions hunting, find minerals, find traces of the urine of animals, hunting down rodents, searching for wounded prey, checking pets for ringworm, check in hotel rooms, inspection bathroom and carpets. Do not look into this device while operating nor shine in any persons eyes.HQRP UV Radiation Meter: This meter shows you the level of UV radiation and helps you protect your eyes and skin from negative sunlight effect. The color of the meter changes from very light purple to dark purple depending on the intensity of the UV lighting. The darker the purple color is, the more intense is the UV lighing.