Hi-Refri?24 Features: ? Max. Rotor capacity: 24?1.5/2.0ml ? . Max. Speed: 14,680 rpm (21,400 ? g) ? Safe and reliable ? Temperature range from -10?C to +40?C ? Pre-cooling of the centrifuge, less than 15min from 20?C to 4?C ? Soft-brake function to protect sensitive samples ? Separate short-spin key for quick centrifugation ? Constant temperature maintained even during static or no centrifugation cycle