Achala Engineering and Electronics manufactures Online Direct Display Residual Chlorine Analysers. Achala Engineering and Electronics is an ISO 9001:2000 certified organization. The Online Direct Display Residual Chlorine Analysers are available between range 0-5 ppm. This Online Direct Display Residual Chlorine Analysers has Sensor Based on ORP Milivolt 4-20 MA DC that features Micro process control circuit and Automatic controller to PPM. Effective with continuous monitoring, it functions at an ambient temperature of 32 degree Celsius.