User's Guide

4
Only use electrodes provided by Firstbeat. These are widely used medical electrodes which have
been clinically tested and approved for human use even for medical purposes. Use of other
electrodes may deteriorate measurement accuracy.
Note! If you have hair on your chest, it is recommended to shave the electrode contact area before
attaching electrodes. This will improve contact and also ease the detachment of the electrodes after
monitoring.
• After attaching electrodes make sure that the electrodes hold and the contact to skin is
secure.
• Change the electrodes once per day, e.g. after taking a shower, after heavy sweating or if
they become loose. You can change the electrode location slightly when changing them, if
your skin feels irritated.
Starting the measurement
Follow the instructions in the Firstbeat Life application.
Note! Never wear the Bodyguard 3 during a shower, swimming or sauna. The
device is not waterproof. It is splash proof so it will withstand, for example,
sweating during exercise.
When you take the device off for going into, for example, the shower, the
measurement will automatically be paused and it will continue after you attach
the device again after the shower (with new electrodes). Note: Dry your skin
carefully before attaching the electrodes!
Ending the measurement
Follow the instructions in the Firstbeat Life application.
Electrodes and skin care
Store the electrodes in their delivery bag. After opening, close the bag carefully making sure to keep
it as air tight as possible. Store electrodes in a dry place at room temperature. Electrodes not stored