Basic principle: Readings clearly show the helpful voltage depending on the normal worth of samples more than an entire amount of durations of the elemental frequencyN?p ít nh?t ten ?i?m thì b?n s? ???c nh?n t?ng th??ng t? h? th?ng nhà cái. L?u ý là ph?i ??ng ký nh?n khuy?n m?i ngay tr??c khi h?t th?i h?n 24h.. Website page 61 Industrial Sco