WDIS410
Walchem's WDIS Series controller will reliably and economically
control your water treatment disinfection process. The controller
includes four standard sensor input options (free chlorine/bromine,
chlorine dioxide, ozone, peracetic acid) or can be configured to
use a variety of other types of disinfection sensors, such as
hydrogen peroxide or total chlorine. 
The WDIS Series controller takes the
guesswork out of your disinfection process. The chemical
concentration is continuously monitored and controlled to the
precise range required for proper system control and regulatory
compliance.
Designed to be flexible and versatile, the WDIS Series
controller is the ideal solution for disinfection applications in
cooling towers, food & beverage, drinking water,
wastewater and swimming pools.
Integrated datalogging is available to validate system
performance. A USB memory stick is all that's needed to extract
data and event logs that include disinfection sensor measurements
and relay status. Download log files from the USB stick to a PC at
your convenience. It couldn't be easier!