From Advanced Sensors to Insightful Analysis
Advanced Sensors
- 3-axis accelerometer
- Dual light sensors
- Large skin temperature sensor
- Waterproof event marker
- LED status indicators
Comprehensive Data
- Raw acceleration data
- Lux-based light exposure
- Continuous temperature data
- Activity levels & intensity
- Sleep patterns & duration
- Circadian light exposure
Meaningful Insights
- Basic Software (Free)
- Advanced Sleep Marking Software
- Circadian rhythm analysis
- Personalized participant reports
- Chronobiological health indexes
- Clear visual feedback
- Actionable lifestyle suggestions
Learn More About Fibion Krono
Motion Tracking
Equipped with a triaxial accelerometer, the device captures detailed movement and orientation data, enabling precise activity and posture analysis.
Light Sensing
With specialized sensors covering the visible and infrared spectra, including a blue-light filter aligned with melanopsin sensitivity, the device accurately measures circadian-relevant light exposure. Its flicker reduction technology enhances measurement accuracy under artificial lighting conditions.
Temperature Monitoring
Featuring a high-precision skin-contact sensor with an accuracy of ±0.1°C, the device reliably monitors skin temperature. Integrated algorithms, such as validated Dim Light Melatonin Onset (DLMO) estimation, facilitate non-invasive circadian phase assessments.
Data Integration
Utilizing the TAP (Temperature, Activity, and Position) algorithm, the device synchronizes multi-sensor data to provide a comprehensive analysis of circadian rhythms and sleep patterns.
Event Logging
An integrated event marker allows users to log specific activities or events, facilitating detailed activity pattern analysis.
Battery Life
Designed for extended continuous monitoring, the device operates for up to 21 days between charges, supporting long-term data collection periods.
User Comfort
With its compact, watch-like design, the device ensures user comfort during prolonged wear, promoting compliance in long-term studies.
Advanced Analysis Software
The device is supported by sophisticated software that allows visual inspection of data to eliminate artifacts and calculates both circadian and basic sleep parameters, facilitating comprehensive analysis of collected data.
Comprehensive Reporting
Upon data processing, the system generates detailed reports encompassing circadian rhythms, light exposure, activity levels, and sleep patterns, providing researchers with valuable insights into participants’ physiological and behavioral metrics.
Expert-Engineered Excellence
Developed by experts behind 375+ sleep and circadian publications.
Specifications of Fibion Krono
DIMENSIONS AND WEIGHT
- Weight: 64g (with band)
- Diameter: 52 x 40 x 12 mm
SENSORS
3-axis accelerometer (MEMS-type):
• Range: ±2 g, Resolution: 12-bit (0.001 g), Sampling rate: Up to 100 HzLight sensors:
• Double sensor: Visible light (380–950 nm), Infrared (800– 1070 nm), Filtered blue light (~460–490 nm)
• Measurement range: 0.01–43,000 lux, with 50/60 Hz flicker suppressionSkin temperature sensor:
• Range: -40 ºC to +150 ºC, Precision: ±0.1 ºC at 25 ºC, Resolution: 0.0625 ºCWrist position detection
Event marker button:
• Watertight, with LED feedback
ENERGY SOURCE
- Battery Type: Rechargeable Lithium-Ion battery
- Operating Time: Up to 42 days at 30-second interval
- Charging Method: Micro-USB (computer USB port or 5V standard USB charger, min. 500 mA)
- Charging Time: Max. 3 hours
- Battery Status: LED indicators
CONNECTIVITY
PC Compatibility: Data transfer via Micro-USB cable (USB 2.0 FullSpeed)
MATERIALS
- Device body & Enclosure: Plastic/Silicone with customizable logo
- Strap: Wristband (material not specified)
SOFTWARE
-
Compatible Systems: Windows OS
-
Basic Software (Lite):
• Device setup and data download
• Data export in CSV/PDF formats
• Personalized light & physical activity goal programming with LED feedback -
Advanced Software (Cloud Platform):
• Automated analysis of circadian metrics (e.g., Interdaily Stability, Intradaily Variability, Relative Amplitude, L5/M10 analysis)
• Sleep/wake statistics and chronotype assessment
• Expert-generated reports for advanced research needs
WATER RESISTANCE
- Watertight USB port and buttons
- Not recommended for wet environments (bathing/swimming)
OPERATING TEMPERATURE
- Range: Sensor operational range -40 ºC to +150 ºC
FEATURES
- Tracks physical activity, sedentary behavior, light exposure, skin temperature, wrist position, and sleep-wake patterns
- LED indicators for goal compliance and battery status
- Event marking button for participant input
- Sampling frequency adjustable from 0.33 Hz to 100 Hz
- 4 MB internal memory (up to 42 days recording at 30-second intervals)
- Quick data download (full memory in max. 40 seconds)
APPLICATIONS
- Designed for circadian rhythm monitoring, physical activity research, light exposure studies, and sleep analysis
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