The 200 series is Watson-Marlow's multi-channel range, used in scientific applications around the world whenever high accuracy at low flow rates is required. Two pumps are available, the 205S/CA manual-control variable-speed pump, and the 205U/CA auto-analog and manual-control variable-speed pump. Both are fitted with tachometer-controlled servo-quality DC motors for super-precise speed control. Pumpheads with 4, 8, 12, 16, 20 and 24 channels may be fitted to both pumps. All accept Watson-Marlow manifold tubing which is available in over twenty sizes and five different materials (Marprene, silicone, PVC, acid resistant and solvent resistant) for the widest range of chemical compatibility. | 
