Intro
The FLUX I and its app (iOS & Android) are now available. The FLUX I requires a phone with NFC capabilities. It captures lactate and sweat to give a clear signal on training intensity and capacity. Pair FLUX I with a heart rate monitor on the app to update your heart rate zones every week using a 4x10 min session.
The app is improving almost daily at 00:00 UTC during this phase, and it is advised to update it before each training session. If you have any questions, you can visit our support or contact us on email and WhatsApp.
Usage
FLUX I is worn similarly to a heart rate monitor and is placed on the same area of the arm, with the three gold electrodes facing the skin.
Open the app and tap 
in the chat bar to connect auxiliary sensors such as heart rate monitors and power meters.
Modes
Three modes are supported by FLUX I and its app depending on the level of accuracy required in training:
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FLUX I — lactate and sweat reading on every NFC scan at moderate accuracy with 4x10 min session on indoor treadmill.
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FLUX I + Heart Rate monitor — stream lactate and sweat at highest accuracy by using NFC scans from FLUX I to calibrate once every week with 4x10 min session on indoor treadmill.
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Heart Rate monitor — stream lactate with some accuracy but will drift over time without NFC scans from FLUX I to calibrate.
Setup
It is recommended to use the 4x10 min session in 
on an indoor treadmill, and to include at least an external heart rate monitor for higher accuracy. The app will prompt you to perform NFC scans throughout the session when needed.
The FLUX I is waterproof, but measurements are not reliable when exposed to water such as during swimming or training in rain.
Measurement
Scan the FLUX I before starting your session by tapping 
to the right in the chat bar:
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iPhone — scan near the top of the device (around the speaker).
-
Android — scan near the center of the phone.
Remove any phone case or cover for better connectivity to FLUX I and get as close as possible to its antenna with your phone.
Maintenance
The FLUX I is water resistant up to 50 meters and can be rinsed with water after use. It is recommended to let it dry before using it again. There is no limit to how many times you can use the FLUX I in one day. With regular use and proper care, it is designed for long-term durability.