QuantaDose created the world’s very first reusable self-powered 2 in 1 UVC wavelength detector and UV photochromic intensity test that fits in your wallet. Save money with this 1st and 2nd edition UVC test card package and support rapid improvements in UVC wavelength and intensity detection technologies designed and engineered in the USA. Beware of UVC test cards without a point of calibration that just glows. Many imported products are sold as UVC test strips/cards that only measure wavelength, with no reference to power. 1st and 2nd edition QuantaDose UVC test cards indicate both UVGI wavelengths and UV intensity.