Omron BP6100 Instruction Manual page 12

Movement error symbol
Appears along with readings when your body is moving during a
L
measurement. If it appears, remove the wrist cuff, and wait for 2 to 3
minutes. Then, remain still and take another measurement.
Cuff wrap guide symbol
M
Appears if the wrist cuff is wrapped around the wrist too loosely while
taking a measurement. It also appears when viewing past readings.
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