Presence and dusk sensor Steinel PD-24 DALI-2 IPD recessed IP54 round white

The Steinel PD-24 DALI-2 IPD recessed IP54 round white is a presence and dusk sensor designed for installation in ceilings or walls to control lighting via DALI-2 protocols. It combines occupancy detection and ambient light measurement in a compact round housing with IP54 protection, enabling automated on/off switching and daylight-dependent dimming. The sensor is intended for integration into lighting systems where reliable presence detection and daylight harvesting improve energy efficiency and user comfort.

Advantages

This recessed presence and dusk sensor offers DALI-2 compatibility for direct integration with modern lighting control systems and supports both presence detection and ambient light sensing in a single device. The IP54-rated enclosure provides protection against dust and splashing water, making the unit suitable for common indoor environments. Its round, low-profile design allows discreet installation in ceilings or walls while maintaining accurate detection coverage and stable communication with DALI-2 drivers and controllers.

Suitable for

• Office spaces and open-plan work areas for occupancy-based lighting control
• Corridors and stairwells requiring automated on/off switching and reduced energy use
• Commercial premises and retail areas where daylight harvesting and central DALI-2 control are needed
• Utility rooms and service areas where IP54 protection is beneficial

Key specifications

• Function: Presence detection combined with ambient light (dusk) sensing
• Control interface: DALI-2 compatible output for lighting control and dimming
• Mounting: Recessed installation for ceiling or wall application
• Ingress protection: IP54, suitable for dust-protected and splash-prone indoor locations
• Shape and color: Round housing in white with low-profile design

How to use

Install the sensor recessed into a suitable ceiling or wall cut-out according to mounting dimensions and wiring requirements of the lighting system. Connect the sensor to the DALI-2 network following the system wiring diagram and local electrical regulations. Configure detection range, hold times and daylight thresholds via the compatible DALI-2 commissioning tools or controller to match the application. Verify detection coverage and adjust sensor position or sensitivity settings to avoid false triggers from adjacent activity.

Usage recommendations

For reliable operation, position the sensor to provide clear line-of-sight over the monitored area and avoid mounting directly above heat sources or air vents. Use DALI-2 commissioning to set appropriate lux thresholds for daylight harvesting and to coordinate time delays with building usage patterns. Regularly inspect the recessed housing for dust buildup and clean the sensor cover with a soft, dry cloth as needed to maintain accurate detection.