Selector switch allows operator to select timed, precise, measured or operator - controlled amounts of material. Time ranges from 0.00 - 9.99/00.00 - 99.99 seconds TEACH MODE enables the operator to quickly determine the timer setting necessary to dispense specific amounts TIMER STOP allows operator to interrupt timed shot and begin time sequence where it was interrupted OPTIONS vacuum pick and place pencil for pickup of small parts, 0-15 psi regulator for added accuracy of dispensing very thin materials