The MP30 Drawdown/Water Level Meter is unique. With its link to the MicroPurge pump controller for automatic drawdown control, you'll never have to worry about over purging a monitoring well again. By constantly keeping track of well level for you, the MP30 removes one of the variables that can make low flow sampling a challenge. Even if distractions occur, you'll have the confidence of knowing that the well will not be pumped down to excessive drawdown levels that could compromise your sample integrity.