The digital display meters are used in measuring voltage of AC, DC, direct current, power, power factor, rotational speed, voyage, petroleum power system, railway, military and so on.

• 广泛应用在航天、航空、石油、电力、铁路、军工等各个领域，用户遍及全国各地二十多个省市，部分产品已远销澳洲、北美洲。