The Perimatic GP represents a lower cost alternative to the Premier model (P8560) yet still offers many of the Premier's attractive features. The Perimatic GP can also be used as a transfer pump in forward or reverse mode. Features include: Microprocessor calibration, Memory to store calibration values, volumes and set-ups for various tubing sizes, XY module interface, Manual dispensing by hand or footswitch, Automatic dispensing with interval timer. Specifications: Dispensing Range: 1 mL to 10 L, Accuracy (10mL): ±1.0%, Max/Min Tube Bore: 8mm/3mm, Tube Wall Thickness: 2mm, Pumping Rate (mL per sec.): 2.1 to 22 mL, Power: 110/240 VAC, Shipping Weight: 16 Lbs.