测量范围：    -2.00~+18.00pH
                       pH分辨率：    0.01 pH
                       pH精确度：    ±0.01 pH±1digit
                       mV测量范围：    -1250~+1999mV
                       mV分辨率：    1mV
                       mV精确度：    ±1mV
                       温度范围：       -9.9~+120.0℃
                       温度分辨率：    0.1℃
                       温度精确度：    ±0. .5℃
                       pH稳定性：    ≤0.02 pH/24h
                       仪器校正认可范围：  零点 ±1.45 pH
                       斜率 ±30%
                       温度补偿：     0.0~99.9℃
                       讯号输入阻抗：   ≥1×1012W
                       工作电压：     9V 电池
                       尺寸：      190×83×54mm
                       重量：      0.6Kg