... Standard and complied with the requirement of No-Gap Oxygen-Zn Light Arrestor(GB 11032-89). ... class with lock storageComparative humidity: no more than 85% when 25°c,no dewOperation method: interval application 30 ... end adopts ball-type shielding digital display,no shift change with accuracy 1μA or ... .1μA clear indication,high accuracy and no worry of discharge impulse.The leakage current ...