How to adjust Backlight level.
When you spot the Display setting,
click the upper ▪ to select Backlight level.
Then click ▲ or ▼ buttons to increase or
decrease the LCD backlight brightness.
Higher refresh rate provide more smooth LCD
viewing experience but it consume more battery.
How to adjust LCD refresh rate level.
When you spot the LCD refresh rate setting,
click the upper ▪ to select backlight setting.
Then click ▲ or ▼ buttons to increase or
decrease the LCD refresh rate.
The clock is in 24hours format and powered by
the battery of detector. Once the battery is out
of energy the clock will be reset to default time.
How to adjust Clock.
When you spot the Clock setting, click ▲ or ▼
buttons to increase or decrease hour number,
hold upper ▪ to switch to minutes setting.
Then click ▲ or ▼ buttons to increase or
decrease minute number.
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