The UV HAWK™ 2 is the perfect tool to measure the intensity of ultraviolet light anytime, anywhere! The decreasing quality of the ozone layer can increase exposure to damaging ultraviolet rays. These rays have been linked to sunburns, skin cancer, cataracts, and immune system dysfunction. The UV HAWK™ 2, with a sleek new design and waterproof exterior, quickly and easily tests the UV index and indicates the level of protection you need before enjoying time outside, on the beach, in the garden, on a bike ride; virtually anywhere one is exposed to prolonged sunlight.