MEMOSENS CCS51D CCS51D-1040/0 (CCS51D-AA11BF) FREE CHLORINE SENSOR (25MM DIAMETER) AMPEROMETRIC, MEMBRANE COATED. MEMOSENS SENSOR RELIABLE DISINFECTION FOR DRINKING WATER AND POOL WATER, SAFETY IN THE FOOD INDUSTRY AND UTILITIES. LOW MAINTENANCE SENSOR, WIDE MEASUREMENT RANGE: 0 – 200 MG/L FREE CHLORINE. LONG-TERM STABLE MEASUREMENT, FAST RESPONSE TIME, FOR RELIABLE PROCESS CONTROL, FLEXIBLE INSTALLATION. CODE DESCRIPTION AA APPROVAL: UNCLASSIFIED ZONE 11 APPLICATION: PROCESS WATER, DRINKING WATER BF MEASUREMENT RANGE: 20 MG/L