Onsite treatment systems can benefit from a variety of electronic devices. They range from controls that operate timed or demand dosing in advanced systems, to simple alarms that alert homeowners and maintenance providers to potential problems before they erupt in basements or back yards. A range of technologies enable professionals to match the best device with each installation. Here is a sampling of the latest in control, alarm, and monitoring products from onsite equipment manufacturers.Programmable logic modulesMVP control panels are designed for one- or two-pump systems that time-dose to sand filters or drainfields. A digital programmable logic module with an
