LW Scientific’s Combo V24 centrifuge saves valuable counter space and comes in four rotor choices, including test tube, hematocrit, and microtube. No tools are required to change out the rotors. The Combo V24 reaches speeds of up to 12,000 rpm on the high-speed setting and can hold up to 24 test tubes, 24 hematocrit tubes, or 24 microtubes. Other features include variable speed control, a 30-minute timer, an all-metal body construction, and a locking lid. The unit also comes equipped with an electric brake for quick stop and a heavy-duty motor built for years of use. A built-in digital tachometer is also available.

LW Scientific
(800) 726-7345; www.lwscientific.com