123B/124B/125B Consumers Handbook The Meter Recorder would make the Check Tool act as a paperless recorder that collects a number of parameter measurements after some time and displays The end result for a graph or a trend-line on screen. That is most handy to..- Xem d? ?oán b?ch th? two s? cu?i c?a các gi?i ??c bi?t và gi?i eight c?a các t?nh