便携式PH计的详细介绍
                        pH测量范围：    -2.00~+18.00pH
                        pH分辨率：    0.01 pH
                        pH度：    ±0.01 pH±1digit
                        mV测量范围：    -1250~+1999mV
                        mV分辨率：    1mV
                        mV度：    ±1mV
                        温度范围：       -9.9~+120.0℃
                        温度分辨率：    0.1℃
                        温度度：    ±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