uni-t ut526 многофункциональный цифровой измеритель электрической изоляции тестер сопротивления земли метр узо тест ut526

ut526 are highly accurate, reliable, and user-friendly. they are your ideal tools to test the parameters of residual current device (rcd), earth resistance, insulation resistance, dc and ac voltage.ut520 series complies with the over voltage standard (cat iii 600v).