123B/124B/125B End users Manual The Meter Recorder can make the Test Device act as a paperless recorder that collects a number of parameter measurements with time and shows the result to be a graph or perhaps a pattern-line on monitor. This really is most helpful to..?i?u này là thi?t thòi l?n cho các V?V ??nh cao trong b?i c?nh ph?i t?p luy?n,