... Dehumidification core free maintenance within 3yearFeature:Equipped with N2 flow meter, N2 connector, magnetic valve, the dehumidification core and ... control electronic valve of N2-suction, auto accurately control humidity and N2 suction to save N2 and fast dehumidify. ... Module, Films, Wafers, Lab chemical and medicine etc. N2 dry cabinet ultra-low humidity-1452L for semiconductor, wafer storage ...