Busch-Jaeger Multi Sensor BW180 64764-212 KNX Ceiling Presence Detector with Temperature, Humidity, CO2, and Light Sensors, Studio White 2CKA006800A2989

The Busch-Jaeger Multi Sensor BW180 is a KNX ceiling-mounted multi-sensor that combines presence and motion detection with measurement of brightness, temperature, humidity, and CO2 levels. Its 180° detection angle and adjustable sensitivity make it suitable for precise room monitoring in building automation systems.

Advantages

This sensor integrates five measurement functions into one device, reducing installation complexity and cost. It supports three independent channels, allowing flexible control of lighting, HVAC, and other KNX actuators based on presence, light level, or air quality. The flush-mounted design blends discreetly into ceilings, and the Studio White finish matches modern interiors.

Suitable for

• Office lighting control based on presence and daylight harvesting
• Meeting rooms requiring CO2-based ventilation control
• Corridors and open areas with wide-angle motion detection
• Building automation projects needing multi-parameter environmental monitoring

Key specifications

• Bus system: KNX
• Sensor types: PIR presence/motion, light, temperature, humidity, CO2
• Detection angle: 180°
• Presence detection area: 64 m² at 2.5 m mounting height
• Motion detection area: 200 m² at 2.5 m mounting height
• Mounting: ceiling flush-mounted, recommended height 2.5–4 m
• Brightness range: 1–1000 lux
• Temperature range: 0°C to +50°C
• Humidity range: 0–100% RH
• CO2 range: 0–2000 ppm
• Power supply: via KNX bus
• Number of channels: 3
• Adjustable PIR sensitivity
• Colour: Studio White

Recommendations

For best coverage, mount the sensor at 2.5–4 m height in a central ceiling position. Configure the three channels via ETS to independently control lighting, heating/cooling, and ventilation based on the measured values. Use the integrated logic functions to create advanced automation scenarios without additional controllers.