1.Multi-functional modes: 7 modes choices; 2.Alkaline water: mode 1, 2, 3, 4; ph range: 7--11£» 3.Filter water (neutral): mode 5-- ph 7; 4. Acid water: mode 6, 7; ph range: 3--7 5.Big screen + 7 color show: it can show ph, orp and lifetime. 6. Three electrode plates 1.Multi-functional modes: 7 modes choices; 2.Alkaline water: mode 1, 2, 3, 4; ph range: 7--11£» 3.Filter water (neutral): mode 5-- ph 7; 4. Acid water: mode 6, 7; ph range: 3--7 5.Big screen + 7 color show: it can show ph, orp and lifetime. 6. Three electrode plates