Panasonic EW-BW30S Operating Instructions Manual page 14

Fitting the Pressure Cuff
Do not remove the hook-and-loop
fastener by twisting it off.
Be sure to peel it in an horizontal
direction in alignment with the cuff.
<When wrapping around right wrist>
Fit as shown in the figure.
13
English
(cont.)
The cuff can be used on either wrist.
However, the difference in blood
pressure between the left and right
wrists may be around 10 mmHg, so
be sure to always use the same wrist
for measurements.