eLine Technology VL-PIR - Manual (Page 8)

Visible Light PIR Camera OSD Menu Tree eLineTechnology.com
BURST : You can choose whether to use of BURST at NIGHT MODE.
IR SMART : Setting of IR SMART related.
5. 3DNR
The 3DNR reduces the background noise in a low lumination circumstances.
IR GAIN : The strength adjustment
of IR SMART.
AREA : The area size adjustment of
IR SMART.