Global Chlorine Sensors Market By Type (Total Chlorine Sensors , Free Chlorine Sensors , Compound Chlorine Sensors , and Organic Compound Chlorine Sensors), By Application (Oil & Gas , Water & Wastewater , Mining, Minerals & Metals , Automotive , and Food & Beverage), By Region, and Key Companies - Industry Segment Outlook, Market Assessment, Competition Scenario, Trends and Forecast 2020-2029