UV Exposure Tags - UV Reactive

This Exposure Tag is designed to react directly to UV Rays

You must use ESUN UV Reactive PLAs - They have a number of different colours available - I bought the White to Red one myself for this project! 

Its good as a learning tool or a measuring tool to help you stay out of those harmful UV rays - however this should not be considered a peice of scienfitic equipment, more a fun way to check if you are in UV radiation! 

The filament changes within 20-40 seconds and will stay red until you leave the UV exposure region - this is basically anywhere the sun shines, so please don't lose your mind about the exposure, its normal :)