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  • Surprisingly Usefull

    posted by filekb on 11/11/2012

    Involvement:General (knows how to use it) - Ownership:1 week to 1 month


    These beads are small, light and easy to carry anywhere you want to being them. They seem to actually work on UV and not just on the brightness of the light like some of the othe UV detectors I have tried. On a bright summer day I took the beads outside and they turned really dark purple indicating high UV index. I then put the bead behind my car window which is supposed to block all UV, and the beads turned back clear, even thought the light was still really bright.


    Seems to be a little too sensitive. Good to tell you if there is UV, but not really usefull to tell you if it is moderate or high levels.




    Well worth the price for a basic indicator of whether there is UV or not. I.E. good to test your sunglasses.

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