1. Instrument Module: Coagulator-Clarifier. It is designed for continuous automatic control of the main technological parameters of water treatment (turbidity, pH, temperature, speed of clarification of coagulated suspension); processing units monitoring; optimization of dispatching services2. Instrument Module: Automatic Coagulator & Flocculator Proportioning. It is designed for continuous automatic control of coagulant (and flocculant) doses in the treated water in the samples after the mixers and automatic controlling of actuators: dosing pumps, control valves3. Instrument Module: Chlorine Monitoring. It is designed for automatic measurement of total concentration of the active and free residual chlorine in water samples in the primary and secondary chlorination and control of chlorine reagent actuators;4. Instrument Module: Automatic Alkali Reagent Proportioning. It is designed for continuous automatic control and maintaining of the desired pH value of the treated water and the automatic control of actuators, alkaline reagent batching devices.