Core body temperature sensor CORE Calera

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Product description Calera® is CORE’s premium core body temperature monitoring solution for research use cases. The innovative sensor technology is built into a compact waterproof device that can be comfortably worn during controlled study settings, sports activities, at work, or all day long. CORE Calera® comes with functionalities and services specifically designed for research purposes, including access to high-resolution data and multiple benefits often appreciated by researchers.
Advantages

• Raw Data Access
• More data streams (e.g. core temp, skin temp, accelerometer, external heart rate, heat flux*).
• Highest resolution: 1 measurement per second.
• For highest precision during sports activity, pairing with a heart rate monitor is highly recommended to aid conversion of measured heat flux into core body temperature. During everyday activity core temperature data is accurate with or without a heart rate monitor.
• Remote Support
• Support for study setup.
• Data interpretation support.
• Highest Accuracy
• Each Calera® device undergoes individual calibration for heat flux and skin measurements to ensure optimal accuracy across devices.
• Store Data on Calera
• Up to 6.5 days of onboard storage.
• No loss of data due to poor connection.
• Research tool
• Control multiple devices simultaneously from PC/Mac.
• Manage and download data in easily accessible .csv format.

*Heat flux is available only on agreement.

Technical Specifications

• Dimensions (diameter × thickness × height): 50 mm × 40 mm × 8.35 mm
• Mass including battery: 17 grams
• Power supply: Rechargeable lithium-polymer battery (via USB)
• Battery life: 6.5 days of measuring (up to 6 weeks in sleep mode)
• Data storage capacity: up to 6.5 days
• Sampling rate: 1 Hz
• Research-backed accuracy: mean difference range of -0.01°C to +0.23°C
• Calibration: Individual calibration at CORE HQ
• Time to full charge: ~2 hours
• Waterproof: waterproof (immersion to 1.5 m) and sweat proof
• Medical use: not FDA certified; must not be used for medical or diagnostic purposes
• Connectivity: Bluetooth BLE & ANT+ (yes)
• App support: iOS and Android

What’s In The Box

• CORE Calera® sensor
• Securing clips
• USB charging cable
• Adhesive patches
• Bluetooth dongle to connect to desktop PCs
• Calera quick start guide, warranty and manual
• CORE Calera® app
• Research tool for Mac/Windows

Warranty Information CORE Calera® has a warranty of one year under Swiss law.
The Technology Calera® is a wearable device that enables accurate, non-invasive, continuous core body temperature monitoring. The technology combines heat-flux and skin temperature sensors with machine learning algorithms trained on a large dataset to calculate core body temperature. Heat-flux sensors (Seebeck-type) measure thermal energy transfer; when heat passes through the sensor it generates a voltage proportional to heat flux, enabling direct or combined estimation methods for core temperature.