Profile: Optical Test & Calibration Ltd. specializes in calibration service for infrared light measurements for fibre optic test equipment. Our services include fibre optic services, photometric/radiometric services and electrical/ electronic calibration services. Radiometric measurements can be made at wavelengths between 200nm and 1700nm. Thermopiles and pyroelectric sensors used for CW power can also be accommodated. The instruments include lux/illuminance meters, luminance meters, color /chromaticity meters and CRT / TV color analyzers.