RH Level : 10% ~ 50% External dimensions : (W x H x D) 88 x 90x 53 cm Internal dimensions : (W x H x D) 83 x 79 x 48 cm Doors: Anti-Static Glass Shelves : 3 Anti-Static Shelves (Adjustable Height) Load Capacity per Shelf : 50kg Volume : 372 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.