The room light intensity sensor PHOTASGARD® RHKF-UP measures the luminous intensity and is used to control luminaries, lighting systems, Venetian blinds and canvas blinds, etc., to monitor lighting conditions at workplaces, in storage halls, workshops and corridors, in indoor areas, in industrial halls, in offices as well as in residential and business facilities, for daylightdependant constant light control, as light intensity or twilight sensor and to control sunshade equipment avoiding unnecessary heating-up of rooms. The sensor used in PHOTASGARD® light intensity sensors was specifically adapted to the sensitivity of the human eye. Its greatest sensitivity is in the range of 350 nm to 820 nm. Therefore with its special filter the sensor is predestined for exposure measurement of daylight and ⁄ or for measuring artificial light of high colour temperature (similar to sunlight). The case of the sensor is hermetically tight, the vision panel is protected by a glass plate.

Room light intensity sensors (in-wall) PHOTASGARD® RHKF-UP: