16:38, 12 September 2018 Qi(talk | contribs) deleted page USA/IPCamera/PTZ/Ultra/DH PTZ19240V IRB N(content was: "==DH-PTZ19240VN-IRB-N== 400px file:PDF_banner.jpg|link=File:Datasheet_Solutions_2MP_40x_NetworkPositioningSy...", and the only contributor was "Qi" (talk))