... certifcate 2.FIR function 3.High potential 4.Magnetic field Electric field apparatus MG119 Product Features1.adopt micro controller to control, stable ... grade and low grade, circulation frequency 30 seconds.FuseRP1-20, 1A/250VSingle Size38*35*9cmSingle weight5kg(NW)Treatment side heavy-load120kgUse ... : 0-40 degrees, humidity: ≤80%Atmospheric pressure range500-1060hPa Electric field apparatus MG119