These photovoltaic detectors are optimized for UV(Ultra Violet) Region based on III-V GaN (Gallium Nitride) epitaxial material responding to light only in the UV range 200~365nm. UVB and UVC wavelength can be easily selected with integral filters. Our ACUV-2002T detector has been specially developed to measure UV dosages under solar. These detectors are packaged in electrically isolated and hermetically sealed TO-46 housing with UV transparent window. And also other packages are available on customer¡¯s request.