... -proof Current output: 4~20mA,standing for media densityVoltage output: ±0.5VDC,standing for media density.Frequency output: 1 ~10000Hz ... 3,experiment voltage of 8kV. Shell materials: Aluminum alloy castings. Through the accumulation of more than ten years of technical experience and ... and other Southeast Asian countries,Ukraine,Russia and so on. Users such as: CHONGQING SILIAN,CHENGDU HUAQI HOUPU, ...