RH Level : 10% ~ 50% External dimensions : (W x H x D) 60 x 193 x 66 cm Internal dimensions : (W x H x D) 56 x 174 x 61 cm Doors: Anti-Static Glass Shelves : 5 Anti-Static Shelves (Adjustable Height) Load Capacity per Shelf : 200kg Volume : 657 litres Average Power Consumption: 18W ESD-safe Cabinet : Antistatic powder-coat paint, antistatic shelves, antistatic tempered glass panels and 1Meg ohm Ground Wire Hygrometer : TESTO Digital thermo-hygrometer Recovers to original RH within 2 hours after accessing door for 30 seconds or less.