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CALERAresearch includes:
1 CALERA® Body Temp Patch, 6 medical grade double-sided adhesive tapes, 1 Android/iOS App for data downloading, 1 USB charging cable.
Dimensions (diameter x thickness x hight):
50 mm * 40 mm * 8.35 mm
Mass including battery:
17 grams
Power supply:
Rechargeable lithium-polymer battery (via USB)
Battery life:
6 days of measuring
Data storage capacity:
up to 6.5 days
Sampling rate:
1 Hz
Skin temperature accuracy:
±0.05°C (typical) or ±0.13°C (max) from 20°C to 42°C
CBT accuracy (chest) compared to electronic ingestible pills:
± 0.28°C (1σ) ;± 0.21°C (MAD) (chest)
Individual calibration at greenteg
Charging time:
~ 2 hours (full battery)
Waterproof (immersion to 1.5 m) and sweat proof
Product features:
- Smartphone application (Android/iOS/WatchOS/Wear OS/Garmin) - Live display of current skin and body temperature (via app) - Standard BLE temperature profile for any devices
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Product Overview

CALERAresearch  - Core body temperature monitor for research applications

CALERAresearch is the premium Core Body Temperature monitoring solution by greenTEG.

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:

CALERAresearch comes with functionalities and services specifically designed for research purposes. This includes access to high resolution data and several benefits often appreciated by researchers:


  • Raw Data Access
    • More data stream; E.g. core temp / skin temp / accelerometer / Heart rate (ext. device) / Heat flux*
    • Highest resolution (1 measurement per second)
  • Remote Support 
    • We can help you in setting up your studies
    • Data interpretation support
  • Highest Accuracy
    • Individually calibrated devices
  • Store Data on CALERA
    • 6,5 days of storage time 
    • No loss in data due to bad connection
  • Research tool
    • Control multiple devices simultaneously from your PC/MAC
    • manage download of the data in easily accessible .csv file

*Heat flux is only available on agreement



  • Compact: 50 mm x 40 mm x 8.35 mm and weighs 12 grams
  • Highly accurate core body temperature: ±0.3 °C
  • Non-invasive (used on the chest) and continuous
  • Not impacted by environment thermal influences
  • Battery life: 6 days continuous transmission time (up to 6 weeks with sleep mode)
  • Rechargeable lithium-polymer battery (via USB cable supplied)
  • Waterproof up to 1.5m and sweat proof (IP68 Certification)
  • Bluetooth BLE & ANT+ Connectivity
  • App support: iOS, Android

CALERAresearch includes:

  • CALERAresearch measuring device
  • USB charging cable
  • Adhesive patches
  • CALERA quick start guide, warranty and manual.
  • CALERAresearch app 
  • Research tool for Mac/Windows

 CALERAresearch app is available:

CALERAresearch app

Apple CALERAresearch app

For more information please visit our website.

Medical Use
CALERAresearch is not medCE or FDA certified and must not be used for medical nor diagnostic purposes. 


Warranty Information

CALERAresearch has a warranty of one year under Swiss law.


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