UVeBand" made of silicone coating is waterproof. Users simply enter their wrists. Such devices will be installed on the technology works automatically when in contact with skin. If you wish to disable just removed from the wrist only.
Wristbands will run track UVA and UVB rays from the sun and calculate the quantity of harmful skin or not. And if a danger that it will alert the user to avoid and prevent potential harm to their skin.
Such a device is an innovative, highly beneficial to the current situation. Nowadays, global warming, the sun is in the world with more intensity. Which results in harm to human skin. So create a device that can analyze and alert the effects of radiation from the sun that can affect human skin. One option is to allow people to protect themselves from global warming to occur.