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Slide the selected headband stripe through the sensor notches as shown in the figure bellow. Replace the external battery in the sensor by pressing the side latches and releasing them when the battery is positioned correctly.
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Step 4 - attach the turnbuckle on the headband stripe
Close the headband by snapping the turnbuckle into one end of the strap according to the figure bellow
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Step 5 - adjust rough headband size
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Size | Head circumference | Snap-on buttons position |
Headband 1 (16 1/2 - 21 2/3 in) |  Snap-on button position | |
P | 16 1/2 - 18 1/2 in | |
M | 18 1/8 - 20 1/8 in | |
G | 19 5/8 - 21 5/8 in | |
Headband 2 (19 5/8 - 24 3/4 in) | ||
P | 19 5/8 - 21 5/8 in | |
M | 21 1/4 - 23 1/4 in | |
G | 22 7/8 - 24 3/4 in | |
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The final assembly of the headband should resemble the image below
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Final assembly of the headband.
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