WIT-RAIN本機乃用來測試汽機車燈具、雨刷性能、防水條帶、機車儀錶、國防工業之導航系統、飛彈之導火管、鼻錐狀管體、雷達錐頂、航太工業之耐雨水試驗及電器外殼之防水性能，籍以檢測產品之耐水性能。型號ModelWIT-RAIN-AWIT-RAIN-B測試溫度TestTemp常溫roomtemperatureRT-85℃試驗區尺寸InsideDim100 100 100(W H D)cm機器尺寸OutsideDim145 200 130(W H D)cm噴雨RainSpray容量CapacityR11.8L/mintR23.2L/mintS124.5L/mintS239.2L/mint壓力PressureR10.1kg/cm2R20.3kg/cm2S11kg/cm2S23kg/cm2試片架回轉速度SpecimenFrameRotatingSpeed4.~17rpm(可詷adjustable)噴嘴回轉速度SprayNozzleRotatingSpeed23rpm重量Weight350kgs電源PowerSource單相（singlephase）220V.5KW單相（singlephase）220V.9KW