20731906 LSD Ceiling-mounted sensor for measuring the daylight entering the room through the window; with slide switch located beside the terminal for switching to a higher sensibility (0 to 1000 Lux or 0 to 5000 Lux);for connection to daylight-dependent control devices; use of standard installation materials; connection by means of screw terminals; case constructed from fire resistant polycarbonate, halogen free, suitable for ceiling installation; degree of protection IP20, protection class II, ambient temperature 0 to 50°C.