Chemtrol 240 pH Digital Controller monitors_pH/ORP The new PPM sensor is

The new PPM sensor is a solid-state sensor with a selective membrane that provides direct readings of Free Chlorine in water at concentrations ranging from 0

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Chemtrol 240 pH Digital Controller monitors_pH/ORP The new PPM sensor isThe Chemtrol 240 pH Controller is a microprocessor based digital controller designed to maintain the pH level in water treatment applications. It is particularly adapted to the neutralization of acidic or alkaline solutions for environmental applications. The Chemtrol 240 is ideal for small commercial pools (motels or apartments), condos, and high end residential pools. This unit includes the controller, respective probe (pH probe), paddle wheel flow