Sky Sync
Innerscene SkySync is the first sensor capable of capturing the true color of a blue sky — and bringing it indoors.
Traditional light sensors measure a mix of sunlight, reflections, and sky together, producing white, overcast-looking light at 5,000-6,500K. But the real sky on a clear day? It's a vibrant 40,000K or higher.
SkySync's breakthrough dual-sensor technology measures the sky independently from ambient light, streaming real-time color data to your Circadian Sky and Virtual Sun fixtures. As clouds drift by, as the sun moves across the sky, your indoor lighting shifts and responds — making spaces feel alive and breathing in sync with the natural world outside.
With solar-powered wireless installation and indoor window mounting, SkySync brings nature's constantly changing light inside with zero maintenance and no wiring required.
Beyond Traditional Ambient CCT Sensors
SkySync is the first sensor that measures true sky color independently — a fundamental breakthrough in architectural lighting
Why Traditional Sensors Miss the True Sky Color
Traditional sensors measure an average of all light sources — resulting in approximately 6,500K. But the sky alone measures 40,000K.
Average CCT: ~6,500K
Traditional sensors measure a mix of direct sunlight (~5,500K), overcast & blue skies, and reflected light from buildings and surroundings — averaging to approximately 6,500K.
Sky-Only CCT: 40,000K
The sky measured independently has a CCT of 40,000K or higher. This vibrant blue is impossible to replicate without measuring it separately from other light sources.
The Sky is Constantly Changing
This CIE 1931 chromaticity diagram shows real sky color measurements captured throughout multiple days. Each dot represents the sky color at a specific moment — revealing how dramatically the sky shifts every few minutes as clouds pass, the sun moves, and atmospheric conditions change.
Overcast Days (Red/Pink/Purple Dots)
Sky color ranges from 6,500K to 12,000K, shifting constantly as cloud density and thickness change. Traditional ambient sensors can only capture a static average, missing these dynamic transitions.
Clear Sky Days (Cyan/Blue/Orange/Green Dots)
Sky color centers around 40,000K with continuous variation throughout the day. SkySync captures these moment-to-moment changes, making your indoor lighting feel alive and connected to the world outside.
The Problem with Traditional Sensors
Traditional ambient CCT sensors measure light from all directions — mixing direct sunlight, reflected environmental light, and sky light together.
This produces readings of 5,000-6,500K, appearing white and overcast — far from the vibrant blue of a clear sky at 40,000K+. Without measuring the sky independently, architectural fixtures limited to 6,500K cannot replicate the true color of natural daylight.
SkySync's Dual Sensor Solution
10° Narrow Directional Sensor
Measures true sky color independently, capturing the full range from 6,500K overcast to 40,000K+ blue sky conditions
180° Ambient CCT Sensor
Measures diffuse environmental light from all directions for accurate ambient lighting replication
Technical Specifications
Advanced sensing technology for precise sky color replication
Sky Sensor FOV
10° narrow field of view
Ambient Sensor
180° diffuse light collector
Color Accuracy
1 SCDM
Wireless Range
50ft recommended, 300ft max
Setup Protocol
Bluetooth Low Energy (BLE)
Power (Wireless)
Solar-powered with battery
Power (Wired)
IEEE 802.3af PoE - 1W
Communication
2.4 GHz / Ethernet
IP Rating
IP20 (indoor use only)
Safety
UL 1642 Listed Battery
Dimensions
Compact window-mount
Installation
Removable tape mounting
Dual-Mode Operations
One device, two ways to connect
Wireless Mode
Power
Solar-powered with battery backup
Range
50-foot wireless transmission
Operating Hours
Dawn to dusk (auto night suspend)
Communication
2.4 GHz ISM band protocol (no router required)
Ideal for: Retrofit installations and spaces without ethernet access
Wired Mode (PoE)
Power
IEEE 802.3af PoE - 1W consumption
Network
Ethernet data transmission (no internet required)
Deployment
One device per building; recommended for distances >60ft
IP Config
Auto-config or DHCP/fixed IP
Ideal for: Large commercial installations and long-distance deployments
Fixture Control Options
Schedule Mode
Fixtures follow real-time SkySync data to replicate exterior lighting conditions
Dimmer Override Mode
External dimming control overrides schedule programming
Auto-Switching: Fixtures automatically detect external control signals and return to schedule mode when dimming is idle, power cycle occurs, or via app control.
Simple Installation
Get up and running in minutes with our straightforward installation process
Choose Window Location
Select any window with clear sky view for optimal sensing
Mount Device
Apply removable mounting tape to interior window at recommended angle
Configure Connection
Set up wireless via Bluetooth app or connect PoE cable for wired mode
Pair with Fixtures
Connect SkySync to your Circadian Sky or Virtual Sun fixtures
Why Indoor Mounting?
SkySync mounts inside the window to replicate the exact color of natural light as it enters your space
Accurate Color Matching
Captures color shifts from window tinting, glass thickness, and iron content — matching electric skylights to natural windows
Zero Maintenance
No cleaning required — protected from weather, outdoor debris, and UV degradation
Tint Correction
Optional tint correction for heavily tinted environments to replicate natural light in different rooms
Optimal Mounting Position
- ✓10° sensor cone captures focused sky area
- ✓180° ambient sensor measures overall outdoor light
- ✓Removable tape allows repositioning if needed
Compact Design
Minimal footprint design fits discreetly on any window
Downloads
This product is protected by one or more patents with additional patents pending.
View all patents
Perfect Compatibility
SkySync seamlessly integrates with our entire product ecosystem
Unified Lighting Ecosystem
Natural Synchronization
All fixtures respond to real outdoor conditions in perfect harmony
Energy Efficient
Solar-powered wireless mode requires no external power source
Reliable Performance
Dual-sensor design ensures accurate readings in all conditions
Works with Circadian Sky
Circadian Sky's wide-spectrum technology can replicate the full range of sky colors — from warm 2,200K sunset tones to vibrant 40,000K+ blue sky — making it the perfect match for SkySync's breakthrough sensing capabilities. Together, they bring the true, constantly changing color of the sky indoors.
- ✓Full-spectrum color replication up to 40,000K+
- ✓Real-time synchronization with outdoor sky conditions
- ✓Dynamic transitions as clouds and weather change
Works with Virtual Sun
Virtual Sun's wide-spectrum technology replicates the sun's full color range throughout the day, from warm sunrise tones to vibrant blue sky. Paired with SkySync's real-time sensing, Virtual Sun moves and changes color in perfect harmony with the actual sun and sky outside.
- ✓Wide-spectrum replication from warm sunrise to vibrant blue sky
- ✓Synchronized sun position, intensity, and color
- ✓Real-time cloud coverage and atmospheric effects