... environment equipment Feature: 1 Applicaton: Precision instrument laboratory, computer room, elctricity length measurement laboratory...... 2 Multi- wing centrifugal air supply mode, horizontal diffusion ... Source[K.W.]AC 1Ψ 220V;3Ψ380V 60/50HzExcept Computer room environment equipment, Dongguan Yuan Yao Electronics Technology Co.,Ltd ...