... Check the intensity of the UV rate and body temperature 2.Size:85*54mm 3.Nice Promotional Card ... much potential to burn skin. Expose the UV Safe meter to direct sunlight for 20 seconds, then compare ... the colour in the sun's centre with the meter bar to find the approximate Ultra Violet intensity. ... holiday! Front:Back: (8) Keywords: uv watch, uv meter, uv tester, uv sensor, uv indicator, uv checker, uv ...