Chemtrol 265 PPM/pH Digital Controller With 4-20 mA Outputs state_Louisiana 1 to 10 ppm (parts

1 to 10 ppm (parts per million) or mg/l (milligrams per liter)

You can always apply stricter age limitations than your state requires as long as the lettering height on the sign is what is required by your state

This Montana No Lifeguard On Duty aluminum sign measures 18 x 24 inches

even algae from inflatable pools

Our Danger signs indicate an imminently hazardous situation

Chemtrol 265 PPM/pH Digital Controller With 4-20 mA Outputs state_Louisiana 1 to 10 ppm (partsThe 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