离子: 5×10-8~1M: ±1% F.S mV: -1999.9~1999.9mV: ±0.2mV
碘电极量程: 1~6.3 PI (10-1~5×10-7 mol/L), 配套精度: ±0.04 pI,
量程:0.0 to 12.5 mg/L I2,精度:读数的±5%±0.1mg/L