High-mounted ceiling PIR sensor with embedded Casambi and a 1× 800 W ON/OFF relay output. A 120° detection cone covers up to 8m diameter at a typical 6 m mount height — suited to high-bay spaces, lobbies, warehouses, and large open offices. Sensitivity and hold time are configured wirelessly from the Casambi app.
Key Benefits
Wide-angle passive infrared cone detects occupancy reliably across a full high-bay space. 8m diameter coverage at 6 m mounting height suits lobbies, warehouses, and large open offices without needing multiple units.
Set hold time, sensitivity, and linked luminaire groups straight from the Casambi app. No hardware programming tools — the same app used to control the lights configures the sensor.
Compact body with flush or surface mounting options. Blends into standard office and hospitality ceilings without a visible sensor housing detracting from the interior aesthetic.
Technical Specifications
| Model | MSA227S IR B1 |
| Detection Technology | Passive Infrared (PIR) + Daylight sensor |
| Detection Range | 8–10 m diameter max |
| Radius at 6 m Height | 4–5 m (25°C, 100% sensitivity) |
| Mounting Height | 2–8 m (typical 6 m) |
| Supply Voltage | 100–240 VAC, 50/60 Hz |
| Output | 1× ON/OFF relay (max 800 W resistive / 400 W inductive) + Casambi BLE |
| Daylight Range | 0–1200 lux |
| Hold Time | Configurable via app / remote |
| Dimensions | 105 × 105 × 90.8 mm (flush) / 65.8 mm (surface) |
| Operating Temperature | -25°C to +50°C |
| Storage Temperature | -40°C to +80°C |
| Ingress Protection | IP54 |
| Certifications | CE, RoHS |
Tell us your room sizes and ceiling heights and we will spec the right sensor layout for your installation.