The Eppendorf 5402 refrigerated centrifuge can be set from -9C to 40C (16F to 104F) for work with temperature-sensitive samples. The 5402 features a Fast Cool function which cools the rotor chamber from ambient down to 4C within 10 minutes. Set rotor speeds up to 14,000RPM (16,000G) in 100RPM increments. The Eppendorf centrifuge accepts various rotors (not included - must be ordered new from manufacturer) to accommodate tubes of 1.5mL to 2.0mL, 500uL, 400uL or 250uL, up to a maximum capacity of 18 x 2mL. Select the run time from 0-99 minutes or use the momentary button for short cycles. Includes rotor shown in photographs: 18 X 1.5-2 ML rotor (F-45-18-11).