The Model 4.0 UVA Meter's sensor consists of a GaAsP photodiode and a UV filter. It is completely insensitive to visible light longer than 400nm and infrared radiation because its spectral response only covers the UVA region from 320-400nm. Applications include monitoring UV lamp ...The Model 4.0 UVA Meter's sensor consists of a GaAsP photodiode and a UV filter.
It is completely insensitive to visible light longer than 400nm and infrared radiation because its spectral response only covers the UVA region from 320-400nm. Applications include monitoring UV lamp intensity and aging, measuring outdoor UVA, testing acrylic shield transmission, testing window film/transmission, and testing eyewear UVA blocking capabilities. To operate your Solarmeter, aim the sensor window locate