STEINEL True Presence DALI-2 HF Presence Detector, Surface-Mounted, IP54, White (85582)

Facility managers and lighting designers use the STEINEL True Presence DALI-2 in offices, meeting rooms, and corridors where precise occupancy detection and DALI-2 integration are required. This high-frequency sensor detects both large movements and micro-movements, ensuring lights remain on when people are present and switch off when the space is empty.

Key specifications

• Detection technology: High-frequency (5.8 GHz)
• Interface: DALI-2 (input device)
• Detection angle: 360°
• Presence detection area: Ø 15 m (177 m²)
• True Presence detection area: Ø 4 m (12.5 m²)
• Mounting height: 2.5 – 4 m (optimal 2.8 m)
• IP rating: IP54
• Power supply: DALI bus (10–22 V DC)
• Power consumption: 0.8 W
• Time setting: 30 s – 30 min
• Twilight setting: 2 – 1000 lux
• Operating temperature: -20 to +50 °C
• Housing material: UV-resistant plastic
• Colour: White
• Mounting type: Surface-mounted

Why choose it

True Presence detection distinguishes between major movements and subtle motions like typing or breathing, preventing false switch-offs. DALI-2 compatibility allows seamless integration into building automation systems, while constant light control and basic light function enhance comfort and energy savings.

Ideal use cases

• Open-plan offices with varying occupancy
• Meeting rooms requiring reliable presence detection
• Corridors and stairwells in commercial buildings
• Educational facilities with DALI-2 lighting systems

Good to know

The sensor operates on the DALI bus without an external power supply, simplifying installation. Its IP54 rating suits indoor environments with occasional dust or moisture.