Room light intensity sensor and measuring transducer FSHKM-U 1K
temperature Light Intensity

Room light intensity sensor and measuring transducer PHOTASGARD® FSHKM-U 1K

Item no. 1601-5121-7000-162
Product group: WG02

Low availability.

Usually ships in 3 to 5 days
253,07 €
301,15 € incl. VAT + shipping


Room light intensity sensor and measuring transducer PHOTASGARD® FSHKM-U 1K
Maintenance-free light intensity sensor PHOTASGARD® FSHKM with active output, in in-wall housing, to determine the illuminance (0…1kLux). The measuring transducer converts the measured variables into a standard signal of 0 -10 V. The in-wall sensor is mounted in highquality panel switch programmes, ideally of the brands Gira, Berker, Merten, Jung, Siemens or Busch-Jaeger (using in-wall adapters) either individually or in combination with light switches, socket outlets, etc.

The sensor is used to control luminaires, lighting systems, Venetian blinds and canvas blinds and for monitoring the lighting conditions. It is used indoors at workplaces, in corridors, offices, residential and business premises as well as industrial and storage halls as daylight-dependent constant light control, as brightness or twilight sensor and to control sun protection hoods to avoid unnecessary room heating.
The light sensor (photodiode) was specifically adapted to the sensitivity of the human eye. It is most sensitive in the range of 350 nm to 820 nm. With its special filter, the sensor is therefore ideally suited to exposure measurement of daylight and/ or for measuring artificial light of high colour temperature (similar to sunlight).

Technical details

Voltage supply
24 V AC/ DC (± 10 %)
Power consumption
typically < 2.0 VA/ 24 V AC; typically < 1.0 W/ 24 V DC
Measuring accuracy
typically ± 10 % final value
0 - 10 V (linearised)
Light sensor (photo diode)
Measuring range
0…1 kLux
(optionally other individual measuring ranges, e. g. 100 kLux)
Ambient temperature
storage –20...+ 50 °C
operation 0...+ 50 °C
Electrical connection
0.14 - 1.5 mm², using plug terminals
plastic, colour pure white glossy (similar to RAL 9010)
(other colours are possible on request with colour variants
depending on the respective switch programme)
in in-wall flush box Ø 55 mm
Permissible air humidity
< 95 % RH, non-precipitating air
Protection class
III (according to EN 60 730)
Protection type
IP 20 (according to EN 60 529)