User's Manual

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The product continuously records and stores ECG and activity data
for up to 3 days at a time.
2.1.1 Contraindications:
The product is not intended for use in patients with cardiac
pacemakers or other implantable devices.
2.2 About ER1
1. Right sign
When wearing, the side marked "R" should be on the right hand
side of the wearer.
2. LED indicator
Green light flashes (with the rhythm of the heartbeat): the
device is in the normal collection state;
Green light flashes ( 5s intervals): the device is in standby
mode;
Yellow light is always on: the device is charging, and the green
light is always on when it is full
Yellow light Flash: insufficient power;
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