123B/124B/125B Customers Manual The Meter Recorder would make the Examination Device work as a paperless recorder that collects a number of parameter measurements eventually and shows the result to be a graph or perhaps a development-line on display screen. This is certainly most useful to..XSMB - XSTD - KQXSMB - X? s? MB - K?t qu? x? s? Mi?n B?c h