ELRO DWH SERIES VIDEO SECURITY SYSTEM - Manual (Page 21)

Brightness
Tap the camera to change brightness level. The default brightness is 0,
and the range is from -2 through 2.
Recorder Setup Screen
Motion Detection
Tap the camera’s to set the sensitivity to Off, Low or High.
Default = low. The screen will return to the Motion Detection screen after
10 seconds or when you press the Back icon.
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