Our 9000-line of AirFree dispensers uses a patented positive displacement technology to provide the highest level of repeatability of any dispenser utilizing a syringe as a reservoir. We guarantee it. Please spend a few moments familiarizing yourself with the LDS9000 dispenser. Our recommended testing procedures provide an interactive tutorial on the dispenser’s functions. When complete, review the helpful information we have included based on our 40 years of dispensing experience. After complet