Description
HDL Occupancy Plus KNX presence detector, model MSMW24-KT.11. Unlike simple PIR motion sensors, this detector uses 24 GHz millimetre-wave radar to detect people including subtle motion, making it suitable for occupancy-aware lighting and room automation.
Detection and room automation
- Human presence and micro-motion detection at 24–24.25 GHz
- Built-in illuminance sensor, range 0–1200 lux
- Temperature sensing range: −20 to +60 °C
- Two dry-contact inputs for external signals
- Detection area: adjustable 0.5–4 m radius at 3 m mounting height, depending on mounting height and surroundings
- KNX Data Secure support, ETS programming, occupancy logic, constant-brightness and HVAC control
Electrical and installation
- Network: HDL KNX
- Supply: 21–30 V DC; rated consumption 50 mA at 30 V DC
- Manufacturer mounting dimension options: Ø66 × 34.6 mm and Ø48.5 × 27.5 mm, depending on fitting arrangement; confirm the matching cut-out and housing
- Recommended height: 2.5–3.5 m
- Indoor ambient: −5 to +45 °C; IP20 protection
Selection and commissioning
Confirm the correct KNX bus, application software, installation direction and coverage. Radar signals may respond to motion through some materials, so tune sensitivity carefully in partitioned spaces. These sensors are for building automation, not certified intrusion or life-safety alarms.
HDL official MSMW24-KT.11 model specifications
Ordering
Exact-model photograph, supplier stock and retail pricing are unconfirmed; catalogue listing listing remains unavailable for checkout.
The additional photo shows the exact Occupancy Plus MSMW24-KT.11 sensor from the rear: HDL-labelled model, spring mounting clips, and KNX bus terminal positions. Reference: model-based photograph. Confirm supplied hardware revision and installation compatibility.


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