PRGR RED EYES POCKET HS-120A User Manual page 13

→ The previous measurement result will be displayed on the main screen, and the history
display at the top of the screen will roll back by one entry.
* Press and hold down the scroll button to scroll continuously.
* Once the total number of data entries exceeds 500, past data entries will be overwritten
automatically in sequence, beginning with the oldest entry.
<Erasing the history>
Press and hold down both scroll buttons
Histories and counts for each mode will be erased.
Possible areas of measurement and positioning directions
● As a general rule, the device is capable of measuring the speed of balls passing through
the areas shown below. The areas shown are guidelines for when using a baseball. In some
cases, measurement may not be possible due to the material of the ball.
● Where there is an angle between the direction of movement of the target and the direction
in which the device is facing on installation, the speed measured will be slower than the
actual speed.
Example: when measuring a target moving at 70 mph
0 degrees: 70 mph (100%)
10 degrees: 69 mph (98%)
20 degrees: 66 mph (94%)
30 degrees: 61 mph (87%)
3.5 ft
3.5 ft
* Match the direction of the imaginary line extended
from bottom of the device with the direction of the
target.
simultaneously for more than 2 seconds.
12
3.5 ft
Positioning angle
Direction of
movement