Latest BrightSignOS 8 user agents:

User Agent Browser Device
BrightSign/8.0.69 (XT1143)Mozilla/5.0 (X11; Linux armv7l) AppleWebKit/537.36 (KHTML, like Gecko) QtWebEngine/5.11.2 Chrome/65.0.3325.230 Safari/537.36 QtWebEngine 5 XT1143