Programmable dispenser 150 DP is hand held, the fully programmable electronically controlled Williamson Pump150DP dispenser has been developed for scientific applications where precision and versatility go hand in hand. Use the 150DP dispenser to transfer a precise volume of media or reagents directly from your media or reagent bottle to Petaka G3. Minimize waste and aspirates back any unused media or reagents. The unit features easy tube changes via a uniquely designed, hinged tube cover. Volumes can be calibrated to match two different tube sizes and the display can be adjusted to show the desired working range in either μ or ml.The simple to master controls allow you to dispense or aspirate any volume with high precision and accuracy. A dispensing protocol can be programmed to repeat up to 99 times with up to 99 second intervals. A single touch of the “Stop” button and any pump operation is immediately terminated.