Electrolysis : 7 plates-Patented platinum coated 99.99% titanium Water Levels: 4 alkaline, 1 purified, 2 acidic, Cleaning : APEC(Automatic Pole Exchange Cleaning). Size Weight : 280 x 365 x 156(W,H,D)mm, 4.45kg. Voltage and Frequency : AC 10~240V, 5060Hz, 250W.