The SR-MDS is a radio multi-sensor to measure light levels and detect motion. The SR-MDS is typically ceiling-mounted and powered by 24 V so as to permit reliable operations in rooms with low light levels (e.g. basements).

Measured valuesluminosity, motion
Radio technologyEnOcean (IEC 14543-3-10), STM
Frequency868 MHz
Power supplySR-MDS:, flex. 15..240 V =/~, SR-MDS BAT: 3x battery LS14250, 3,6 V
Power consumptiontyp. 0,8 W (24 V =) | 1,2 VA (24 V ~)
Measuring range light0..510 Lux
Measurement intervalWakeUp time = 100 sec. (default)
Dectection rangeØ=5 m at a sensor height of approx. 2,5 m
EnclosureABS, pure white
Protection (IP)IP20 according to EN 60529
Ambient condition-10..+50 °C, max. 85% rH non-condensing
Notesappropriate for constant light control
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Thermokon Sensortechnik GmbH
Platanenweg 1
35756 Mittenaar
Tel.: +49 2778 6960-0


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