instrumentation, electrical and electronic, laboratory colorimeters, detectors, light emitting diode (led) detectors, compressed air filter sets, optical equipment, photometers, power supplies, spectroscopes, used digital transmission analyzers, diffuse reflectance calibration standards, light measurement integrating spheres, coatings, test and measurement equipment available from labsphere inc based in north sutton, nh. click the links below to visit our website or contact us via our profile page.