Contains the built-in tight unattended rechargeable battery 12B/1,2 A · h.
indication of inclusion in the line ~ 220B;
continuous power of loading in the buffer mode;
work of a prompunkt of PP-IS-02M from 2nd to 4 days without recharge;
indication of presence of output tension;
indication of approach of the critical category of the accumulator;
disconnection of the accumulator from loading at the category below critical tension