RH Level : < 20% 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: 36W Hygrometer : TESTO Digital thermo-hygrometer ESD safe shelves/body : Yes ESD safe casters/stands : Yes 1 Meg ohm Ground Wire : Yes Recovery Time: Recovers to ≤ 20% RH within 30 minutes after accessing door for 30 seconds or less.