123B/124B/125B People Manual The Meter Recorder makes the Check Instrument act as a paperless recorder that collects a series of parameter measurements after some time and displays the result being a graph or maybe a development-line on display. This is most beneficial to..T?n su?t c?p Loto T?n su?t Lô r?i T?n su?t gi?i ??c bi?t Th?ng kê chu k? l