... channel testing of video Control PTZ protocol RTS-301 CCTV monitor testerFeatures:Low power consumption, 10 hours working timeChinese / English ... RS485 ports, speed rate 150 ~ 19200/bpsBuilt-in Lipo battery to supply power, more convenient and stableSmall and simple, image ... auto stand by can save power, it's can display battery dataSYSTEM DATAOperating set:Chinese / English OSD menu, optionalAuto stand ...