SphereOptics supplies a wide range of light meters, from pre-configured radiometers for measurements in the UV and blue part of the spectrum, to research-grade light meters that are user-configurable for use as both radiometers and photometers. For the latter, a vast array of interchangeable radiometric and photometric sensors, input optics and accessories are offered that allows for measurements of irradiance (W/m2), illuminance (lux), luminous or radiant intensity (candela or W/sr) as well as the total integrated dose/exposure in joules, J/cm2, lux*seconds and more. Flicker photometer are specialised, high-speed meters that detect potentially hazardous temporal variations in the output from light sources and displays.
