Room light intensity sensor RHKF
temperature Light Intensity

Room light intensity sensor PHOTASGARD® RHKF

Product group: WG01

In Stock

Usually ships in 1 to 3 days
103,80 €
123,52 € incl. VAT + shipping


Room light intensity sensor PHOTASGARD® RHKF
The PHOTASGARD® RHKF room light intensity transmitter with four switchable measuring ranges (four devices in one), measures the light intensity by means of a diffusor and serves to control luminaires, lighting systems, Venetian and canvas blinds, and to monitor lighting conditions at workplaces, in storage halls, workshops, corridors, indoor areas, industrial halls, offices, residential and business facilities.

It can also be used as a light intensity or twilight sensor device for daylight-dependent constant light control, or for control of sunshade equipment to avoid undesired heat-up of rooms.
As a multi-functional device, this light intensity measuring transducer minimises your variety of types and stock keeping while covering a greater range of universal applications. The sensor has been 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,it is ideally suitable for exposure measuring of daylight and/or for measuring artificial light of high colour temperature (similar to sunlight).

Technical details

Power consumption
< 1 W at 24 V DC; < 2 VA at 24 V AC
Deviation, humidity
typically < 5 % of final value
light sensor with diffuser
Measuring ranges
multi-range switching (via DIP switches)
with 4 switchable measuring ranges
0...500 Lux/ 1 kLux/ 5 kLux/ 20 kLux
(other individual ranges optional, e. g. 100 kLux)
Ambient temperature
0...+50 °C
Electrical connection
0.14 - 1.5 mm²
via terminal screws on circuit board
plastic, material ABS,
colour pure white (similar to RAL 9010)
85 x 85 x 27 mm (Baldur 1)
wall mounting or on in-wall flush box, Ø 55 mm,
base with 4 holes, for attachment to vertically or
horizontally installed in-wall flush boxes for rear cable entry,
with predetermined breaking point for cable entry
from top/ bottom in case of plain on-wall installation
Protection class
III (according to EN 60 730)
Protection type
IP 30 (according to EN 60 529)
CE conformity,
electromagnetic compatibility according to EN 61326,
according to EMC Directive 2014/ 30/ EU