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UV light tester bracelet watch
PFT-305 uv bracelet watch
The center area of the UV Toywatch can change colors according to UV Index, higher the UV Index, deeper the color change, compare the color change to the 4 standard colors(low, mid, high, highest) around and you can see low(UV Index:1-2), mid(UV Index:3-5), high(UV Index:6-10) or highest(UV Index:11+) UV Index.