Established in 1961, Gamma Scientific produces the most comprehensive selection of light measurement instruments for LED, display and night vision testing backed by the industry`s most knowledgeable support team. Products include spectroradiometers, photometers, radiometers, colorimeters, goniometers, calibration light sources and integrating spheres. The Gamma Scientific Laboratory has been accredited by NVLAP under the Energy Efficient Lighting Products Program. Gamma Scientific also manufactures retroreflectometers for highway safety under the RoadVista brand, including the StripeMaster and Laserlux CEN 30. UDT Instruments, a Gamma Scientific company, manufactures optical measurement instrumentation.