Sierra Sensor
The room, read continuously.
Motion, daylight and sound in one quiet ceiling sensor. It knows when the room is in use and when it isn't.
Three signals
Quiet intelligence, overhead.
PIR presence
360° field of view, ceiling-mounted, covering up to 1,000 ft². Tuned for seated occupancy, not just motion.
Ambient lux
An integrated photocell drives daylight harvesting through the Olympus. Tell a room how bright to stay, and it trims the artificial light to match the daylight.
Sound sensing
Picks up the sounds of a room in use, so lights stay on for someone sitting still. It only listens for level — nothing is recorded.
Adjustable oculus
Aim it at the room.
The lens tilts and the body turns a full 360°, so after the trim is in you can point the coverage at the desks or the table instead of the corridor outside. No tools, no re-mounting.
Finishes
Two finishes. Both standard.
A white trim ring for most ceilings; black for dark ceilings, theatres and anywhere the hardware should recede.
White
Showing the Sierra in White.
Specs
Sierra at a glance.
Values above are taken from specification sheet Rev 1.2, September 2026. The specification sheet governs where it and this page differ.
Documentation
The Sierra spec sheet.
Wiring diagrams
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