... 3 Water-free humidity sensor Computer room environment equipment Feature: 1 Applicaton: Precision instrument laboratory, computer room, elctricity length measurement laboratory ... .W.]AC 1Ψ 220V;3Ψ380V 60/50HzExcept Computer room environment equipment, Dongguan Yuan Yao Electronics Technology Co ... Tester,Salt Spray Tester,Walk-in environmental Test Room,Temp.Humi. &Vibration Conbined Test Chamber,Aging ...