Omron Focus PM710-M Instruction Manual page 22

3.2 Get Started with Your Therapy
Select intensity level from 1 - 20.
Indicators change every 4 intensity levels.
Intensity
Indicators (blink every 2 seconds)
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
21
5 indicators blink
4 indicators blink
3 indicators blink
2 indicators blink
1 indicator blinks
Press the [+] button
once to increase 1
intensity level.
Press the [-] button
once to decrease 1
intensity level.