123B/124B/125B Users Guide The Meter Recorder will make the Exam Tool work as a paperless recorder that collects a number of parameter measurements after some time and displays The end result for a graph or a development-line on screen. This is most useful to..Cu?i cùng tr??ng h?p vé c?a b?n cho bi?t khi dò k?t qu? x? s? trùng v?i nhi?u gi?i c?