123B/124B/125B Customers Handbook The Meter Recorder makes the Check Device work as a paperless recorder that collects a number of parameter measurements as time passes and displays The end result for a graph or perhaps a pattern-line on display. That is most valuable to..Ph?n l?n m?c tiêu chung c?a ng??i ch?i cá c??c t?i 123B là h??ng t?i s? ch