This torch is designed to: checking leaks in cooling systems (with dyes), hunting for scorpions, 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, verify the money, checks on the authenticity of documents, inspection glass for defects and cracks, etc.Get more news about High Power Uv Pen Light,you can vist our website!This Flashlight is a good tool for observe the cracks and inclusions of the surface or inside of the gemstones.HQRP Flashlight is a good choice for: Check UV Activated Inks; Examining Artwork and Glass for Hidden Repairs; Detect Uranium Glass / Depression Glass / Vaseline Glass; Auto Radiator and Transmission Leaks Cheking; Repair HVAC Air Conditioning Systems.Do not shine the flashlight into the eyes of this, when you use it.HQRP Sun Meter: This meter shows you the level of UV 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 ligthing.HQRP® 365 nM UV LED Pen Flashlight plus HQRP® Sun Meter;Aluminium Body, Light on By on/off Switch;Wavelength: 365 nm; Powered by 2 x AAA batteries (not included);Grate for Room, Mineral Inspection, Security Control, Pet Urine, Leak Detection, Scorpions Hunting, etc;200 days warranty!