數(shù)顯電流電壓表 數(shù)顯功率表、數(shù)顯功率因數(shù)表、數(shù)顯工頻表、傳感器專用數(shù)顯表、頻率轉(zhuǎn)速線速表、電子計(jì)數(shù)器、數(shù)顯溫度溫控器、時(shí)間繼電器、長度計(jì)、長度器、接近開關(guān)