Gi?i m?i (bao g?m t?t c? gi?i nào có s? thay ??i, c?p nh?t m?i ho?c ?i?u ch?nh)You can both plot the minimum and most peak measurement values or history the waveform trace. And, with expandable microSD memory, recording periods can be carried out for nearly 14 days. This recorder is even more highly effective Together with the addition of Recor