Hardware Overview
Technical Specifications & Features
What's in the Box
Your Calera package includes everything needed to start measuring core body temperature (Picture 1) :
- Calera Device
- 6x white liner patches
- Securing clips
- Magnetic USB Charging Cable
- Bluetooth Dongle - For PC/Mac connectivity
Device Specifications
Physical Design
- Dimensions: 50mm × 40mm × 8.5mm
- Weight: Only 17 grams
- Material: Durable, skin-compatible polymer
- Water Rating: Waterproof up to 5 feet
- Design: Fully sealed with no moving parts
Performance Features
- Battery Life: 6.5 days continuous operation
- Data Storage: 6.5 days of high-resolution data
- Sampling Rate: 1Hz for logging mode and 1 minute for measuring mode
- Skin Temperature Accuracy: ±0.1°C
- Core Temperature Accuracy: ±0.21°C
1. What's in the box
2. Top view of Calera Device (LED Indicator)
3. Charging Contacts
4. Sensor Area
Device Components
LED Status Indicator (Picture 2)
Location: top left corner
When shaking the device firmly for 2 seconds
- Flashing green: Device is on and connected
- No Light: Device off or battery depleted
Charging Contacts (Picture 3)
Location: Top of Device
- Magnetic connection for secure charging
- Waterproof design when not charging
- 2-hour charge time for full battery
⚠️ To reset the device, brush the charging cable over the sensor area.
This action will stop all active logging mode measurements. Use caution when charging.
Sensor Area (Picture 4)
Location: Bottom surface (skin contact)
- Unique device ID - Six-segment identifier displayed as X#:X#:X#:X#:X#:X#
- Heat flux sensor - Measures thermal energy transfer
- Temperature sensor - Measures skin temperature