The FCLA 7000 eXact Photometer provides economical field spot testing, as well as fixed sensor collaboration support for the FCL400 Series Free Chlorine Sensor and CLD400 Series Chlorine Dioxide Sensor. The environmentally friendly photometer is U.S. EPA-compliant for regulatory testing and carries the CE mark. It comes with 1,000 test strips to perform free chlorine tests at 0 to 6 ppm.