Omron HEM-9210T Instruction Manual page 16

2. Wrap the arm cuff firmly in
place around your left upper
arm.
The bottom edge of the arm cuff
should be 1/2 inch (1 to 2 cm) above
the elbow. The air tube is on the inside
of your arm and aligned with your
middle finger.
Note: Please refer to the operating instruction of the HEM-RXL31 for applying
the extra large cuff.
16
1 - 2 cm
(1/2 inch)