Press and hold the "−" button for more than 3 seconds.
Auto off function
If the sight is not operated for about 12 hours, the sight turns off automatically (auto off) to save power.
Adjusting the red dot brightness
You can adjust the brightness of the red dot. Ten brightness levels are available. Levels 1 and 2 are primarily for use with night vision devices, and levels 3 to 10 are
for normal use (visible to the naked eye in daylight).
• To increase the brightness: press the "+" button.
• To decrease the brightness: press the "−" button.
The setting will be saved even after the sight is turned off.