GLOBAL ASSISTIVE DEVICES Vibra LITE 12 Instruction Manual page 7

2) Use the "SET/RST" button to select the alarm you would like to
turn on/off.
3) Use the "ST/STP" button to change the selected alarm.
Note: When the alarm is on, the alarm time will be displayed with
"On" in the second box on the right side of the screen. When the
alarm is off, "OFF" is displayed at the bottom of the screen.
Note: To deactivate or re-activate ALL Alarms, see OPTION Mode
Programming Instructions and select OFF or ON for Vibration and
Sound.
CHRONOGRAPH (STOPWATCH) MODE:
 Counts up to 23 hours, 59 minutes and 59 seconds.
 Provides single event, time out (pause) and split timing.
Chronograph Mode Screen Abbreviation:
CHRONO = Chronograph