Sensors and Accessories 19
1 Hold MENU.
2 Select Sensors & Accessories > Wrist Heart Rate >
Abnormal Heart Rate Alerts.
3 Select High Alert or Low Alert.
4 Set the heart rate threshold value.
Each time your heart rate exceeds or drops below the
threshold value, a message appears and the watch
vibrates.
Broadcasting Heart Rate Data
You can broadcast your heart rate data from your watch
and view it on paired devices. Broadcasting heart rate
data decreases battery life.
TIP: You can customize the activity settings to
broadcast your heart rate data automatically when
you begin an activity (Activities and App Settings,
page9). For example, you can broadcast your heart
rate data to an Edge device while cycling.
1 Select an option:
• Hold MENU, and select Sensors & Accessories >
Wrist Heart Rate > Broadcast Heart Rate.
• Hold CTRL to open the controls menu, and select
.
NOTE: You can add options to the controls menu
(Customizing the Controls Menu, page17).
2 Press GPS.
The watch starts broadcasting your heart rate data.
3 Pair your watch with your compatible device.
NOTE: The pairing instructions differ for each
Garmin compatible device. See your owner’s
manual.
4 Press GPS to stop broadcasting your heart rate
data.
Pulse Oximeter
The Instinct E watch has a wrist-based pulse oximeter
to gauge the saturation of oxygen in your blood.
Knowing your oxygen saturation can be valuable
in understanding your overall health and help you
determine how your body is adapting to altitude. Your
watch gauges your blood oxygen level by shining light
into the skin and checking how much light is absorbed.
This is referred to as SpO
2
.
On the watch, your pulse oximeter readings appear as
an SpO
2
percentage. On your Garmin Connect account,
you can view additional details about your pulse
oximeter readings, including trends over multiple days
(Setting the Pulse Oximeter Mode, page19). For more
information on pulse oximeter accuracy, go to Garmin.
com/ataccuracy.
Getting Pulse Oximeter Readings
You can manually begin a pulse oximeter reading by
viewing the pulse oximeter glance. The glance displays
your most recent blood oxygen saturation percentage.
1 While you are sitting or inactive, press UP or DOWN
to view the pulse oximeter glance.
2 Wait until the watch begins the pulse oximeter
reading.
3 Remain motionless for up to 30 seconds.
NOTE: If you are too active for the watch to get a
pulse oximeter reading, a message appears instead
of a percentage. You can check again after several
minutes of inactivity. For best results, hold the arm
wearing the watch at heart level while the watch
reads your blood oxygen saturation.
Setting the Pulse Oximeter Mode
1 Hold MENU.
2 Select Sensors & Accessories > Pulse Oximeter >
Pulse Ox Mode.
3 Select an option:
• To turn off automatic measurements, select
Manual Check.
• To turn on continuous measurements while you
sleep, select During Sleep.
NOTE: Unusual sleep positions can cause
abnormally low sleep-time SpO
2
readings.
• To turn on measurements while you are inactive
during the day, select All Day.
NOTE: Turning on All Day mode decreases
battery life.
Tips for Erratic Pulse Oximeter Data
If the pulse oximeter data is erratic or does not appear,
you can try these tips.
y Remain motionless while the watch reads your
blood oxygen saturation.
y Wear the watch above your wrist bone. The watch
should be snug but comfortable.
y Hold the arm wearing the watch at heart level while
the watch reads your blood oxygen saturation.
y Use a silicone or nylon band.
y Clean and dry your arm before putting on the watch.
y Avoid wearing sunscreen, lotion, and insect
repellent under the watch.
y Avoid scratching the optical sensor on the back of
the watch.
y Rinse the watch with fresh water after each
workout.
Compass
The watch has a 3-axis compass with automatic
calibration. The compass features and appearance
change depending on your activity, whether GPS
is enabled, and whether you are navigating to a
destination. You can change the compass settings
manually (Compass Settings, page19).
Compass Settings
Hold MENU, and select Sensors & Accessories >
Compass.
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