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Temperature Biofeedback for mobiles

The eSense Temperature is a small sensor to measure your skin temperature with the microphone input of your smartphone or tablet (Android or Apple iOS).

Handwarming training is an especially effective and common biofeedback method. The temperature of our hands is connected to our stress level: When we are stressed, we tend to have cold hands. Immediate feedback enables you to voluntarily increase the skin temperature in your fingers, thus increasing your peripheral blood circulation, leading to relaxation and stress reduction.

The eSense provides you in various ways with exact feedback about your momentary stress level, e.g. with measurement curves, video display and audio feedback features.

With all those functions, you can use the eSense in combination with the app to

☑ create and practice given or your own biofeedback training

☑ create and use a guide for meditation

☑ measure and reduce your stress level


For the audio biofeedback, the eSense has a headphone jack, so you can additionaly listen to music or audio books while training your stress level down. We also implemented biofeedback via smart bulbs. Smart bulbs can change their colors and brightness and can be controlled via Bluetooth. Currently the eSense app supports the Magic Blue™ and Philips Hue™ products.

The app for eSense is free and you can export the measured data as a CSV-file. We also enhance and update the app regulary and add ever more features over time.



Quick User Guide

  • When you buy the eSense temperature you can download our free app from the App Store (Apple®) or Google Play (Android). (You can also download it in advance, but the app can not be effectively used without the sensor)

  • Fix the two velcro electrodes around your index- and middle fingers, or simply grip them tightly.

  • Combine the eSense Temperature with the microphone jack of your device.

  • Open the app and click "Start", the measurement will begin

  • Carefully read the instructions to get the most out of your device. The user should wait at least 5 mnutes to acclimatize to room temperature, so that a stable, balanced temperature can be determined.

  • Enjoy the benefits of the Sense Temperature!

Is there a way to extend the cord of the eSense?

If you wish to use a longer cord between the eSense and your smartphone or tablet, you can extend the original cord of the eSense with a common, 4-pin, 3,5mm jack headset extension cord.

Technical Data

  • Measurement at 10 Hz (10 values per second).

  • One value per second (averaged) is stored in the app and can be exported as a CSV file via e-mail.

  • Resolution: 18bit, rounded to 2 digits after the decimal point. Not rounded for export to CS


Apple, iPhone, iPad, iPod touch are trademarks of Apple Inc., registered in the U.S. and other countries. | IOS is a trademark or registered trademark of Cisco in the U.S. and other countries and is used under licence.


Attention: Never use the eSense Temperature while you charge your iOS/Android device! The eSense Temperature is NOT a clinical thermometer!

The eSense Temperature does not need any batteries and is your iOS/Android device.

Which iOS Devices are Supported?

  • Apple® iPhone® from 4S

  • Apple® iPad® from 2nd Generation

  • Apple® iPod touch® from 5th Generation


Which Android Devices are Supported?

  • All Android Smartphones and Tablets from 4.0

  • Your Android device requires a 3,5mm jack (headphone jack) for external microphones!

  • If you plan on purchasing a device for using the eSense, we suggest the Amazon Fire 7 as an affordable tablet.

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