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Test Temp常溫room temperatureRT-85℃試驗區尺寸Inside Dim100×100×100(W×H×D)cm機器尺寸Outside Dim145×200×130(W×H×D)cm噴雨Rain Spray容量CapacityR11.8L/min tR23.2L/min tS124.5L/min tS239.2L/min t壓力PressureR10.1kg/cm2R20.3kg/cm2S11kg/cm2S23kg/cm2試片架回轉速度Specimen Frame Rotating Speed4.~17rpm(可詷adjustable)噴嘴回轉速度Spray Nozzle Rotating Speed23rpm重量Weight350kgs電源Power Source單相（single phase）220V. 5KW單相（single phase）220V.9KW