ATI’s new Q46H chlorine monitor is an upgraded version of the proven Q45H system for continuous monitoring of free or combined chlorine. The system uses a polarographic membraned sensor to measure chlorine directly, without the need for chemical reagents. When needed, automatic pH compensation may be added for highest free chlorine measurement accuracy. Systems are available to provide 4-20 mA outputs for chlorine, pH and temperature. The Q46H system is economical to purchase and maintain.