Product dimension (L*W*H CM): 26.8*16*12.8
Inner packs dimension (L*W*H CM): 29*20.3*16

It is a metrical instrument with high precision used in measuring sine voltage. It is specially used for electricity experiment in schools physics teaching, and provides professional metrical instrument for factory and scientific research units. It uses high resistance FET as input resistor converter, and uses multilevel direct coupling amplifier circuit as signal enlarging.