... Dual channel vibration analyzer technical parameter Featuresl 3.5 inches TFT large LCD screen, simple flow chart, compact and light weight, more ... up/down testingEqual time intervals, Equal RPM intervalsBasic indexLCDTrue color LCD, 320×240pixles, contrast adjustableKeys22 keysCommunicationUSB, 900KB/sStorage capacity1GiButtonDS1990ACommunicationUSB 2.0BatteryRechargeable ...