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the heart rate sensor, wear it over a shirt, but moisten the shirt well under the electrodes to ensure flawless
operation.
The combined impact of moisture and intense abrasion may cause a black color to come off the heart rate
sensor's surface, possibly staining light-colored clothes. If you use perfume or insect repellent on your skin,
you must ensure that it does not come into contact with the training device or the heart rate sensor.
Technical specification
Battery
Operating time with full charge
Type
Charging
Charging time to full
Memory
Capacity
Examples
Communication
USB
Wireless
General
Up to 8 days with 24/7 activity tracking
and 1h/day training (without smart noti-
fications)
Up to 3 days with 24/7 activity tracking
and 1h/day training (with smart noti-
fications)
38 mAh Lithium-polymer, rechargeable,
non-replaceable.
USB compliant power supply or com-
puter USB port equipped with USB type
A connector.
90 minutes
4 Mb
12 days of activity and 4 one hour train-
ing sessions
or
7 days of activity and 8 one hour training
sessions.
Polar custom USB cable
The Polar Loop 2 end of the cable is mag-
netized: keep it away from credit cards
and iron objects.
Bluetooth Smart®
45
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