Q-See QSW1001R - Manual (Page 15)

15
(6) Press LEFT/RIGHT to exit option and then press OK return to setup.
Exit Setup
Press MENU to exit directly.
For motion detection sensitivity refer to the following diagram. When it
reaches the target value, the system would start to record automatically.
The Motion detect sensitivity value setting will be different in different
situations, users can set the proper sensitivity value according to the spot
simulation test
.
Image playback
The photos can be browsed by one or six thumbnails, or by folder. They
can be deleted manually and you can also delete all, or the SD card can be
formatted.
Playback Mode