1. A system for monitoring an electrostatic powder painting process having a conveyor line adaptable for transporting articles to be electrostatically powder painted sequentially through a plurality of zones in the process which include a precleaning-surface activation zone wherein the articles are precleaned and surfaced activated with a cleaning-surface activation solution before painting, the system comprising: a. sensing speed of the conveyor line with speed sensing means and generating a line-speed signal therewith corresponding to real time line speed; b. transmitting the line-speed signal from the speed sensing means to computer-monitor means adaptable for displaying the real time line speed as a line-speed function over a predetermined period of time; c. sensing pH of the cleaning-surface activation solution with pH measuring means and generating a pH signal therewith corresponding to real time pH of the cleaning-surface activation solution; and d. transmitting the pH signal from the pH measuring means to computer-monitor means adaptable for displaying the real time pH of the cleaning-surface activation solution as a pH function over a predetermined period of time.