Chemtrol 265 PPM/pH Digital Controller With 4-20 mA Outputs sign-type_Dry Erase The display has bright LED

The display has bright LED indicators for feed

calibration

This Massachusetts and New York Warning No Lifeguard On Duty (16 Years And Under) aluminum sign measures 18 x 24 inches

This Stenner chemical pump #100FL5A3SUAA provides reliable chemical feeding for your swimming pool

measures 12 x 10 inches

Chemtrol 265 PPM/pH Digital Controller With 4-20 mA Outputs sign-type_Dry Erase The display has bright LEDThe Chemtrol 265 PPM pH Digital Controller with 4 20 mA outputs features Santa Barbara's new Chlorine Sensor for Free Chlorine that gives easy to use, direct, and reliable readings of Free Chlorine concentration in pool water. The Chemtrol 265 is a microprocessor based digital controller designed to maintain both Free Chlorine (PPM) and water pH in commercial pools like hotels, motels, health clubs, municipal pools, and municipal water plants as well