The S1E is a wireless-only variant of the Unity S1. It provides PIR occupancy detection and ambient lux sensing, communicating via Casambi BLE without built-in load outputs — no relay, no DALI. Ideal for retrofits where the LED driver already has Casambi built in and you simply need to add a sensor input. Same slim, discreet ceiling form factor as the S1.
Key Benefits
No relay or DALI output to wire — the S1E is a pure sensor node that communicates wirelessly via Casambi BLE. Just connect mains power and pair it to your network. Reduces installation time and wiring complexity.
Designed for retrofits where the LED driver already has Casambi built in. The S1E adds PIR occupancy and lux sensing to the network without any load cable between sensor and luminaire.
Works with any Casambi-enabled LED driver or controller on the same network. The S1E sends occupancy and lux data over BLE and the paired driver handles dimming — no protocol matching required.
Technical Specifications
| Model | VS-S1E-LBW |
| Detection Technology | PIR (Fresnel) + Ambient Light |
| PIR Range | 13 m diameter at 2.7 m mounting height |
| Light Detection | 1–999 Lux |
| Supply Voltage | 220–240 VAC, 50/60 Hz |
| Control Output | Wireless Casambi (no built-in load output) |
| Transceiver Frequency | 2.4 GHz ISM Band |
| Cutout | 62–66 mm |
| Terminal Capacity | 2.5 mm² |
| Operating Temperature | -10°C to +55°C |
| Ingress Protection | IP65 (recessed front / all surface) |
| Warranty | 2 Years |
Tell us your driver model and layout and we will confirm the S1E sensor count and placement for your project.