Product Description
HQRP UV Chain UV Radiation Meter / Tester / Detector / Indicator ; Ultraviolet Sunlight Meter: Patio, Lawn & Garden. Dark purple: very strong intensity, UV index 8-11. The center of the Solar UV Meter with 3D effect can change series of color according to Solar UV Index. It is how Solar UV measuring function is maintained. The 4 standard color indicators show intensity of Solar UV rays. To know the Solar UV Index, it is enough to compare the colorchange with the 4 standard colors around. The greater intensivity is the darker is the color.Clear colors mean small intensity and dark colors mean great intensivity of Solar UV rays. Very light purple: low intensity, UV index 1-2. Sun-protection not necessary. Light purple: medium intensity, UV index 3-5. Sun-protection is recommended. Purple: strong intensity, UV index 6-7. Sun-protection is necessary. Avoid exposure.
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