| 型号 | PP-15-P11 | PP-20-P11 | PP-25-P11 | PP-50-P11 |
| PH测量范围 | -2.000~+20.000 | -2.000~+20.000 | -2.000~+20.000 | -2.000~+20.000 |
| PH分辨率 | +0.001 | +0.001 | +0.001 | +0.001 |
| PH精度 | +0.002 | +0.002 | +0.002 | +0.002 |
| MV测量范围（mv) | +1800.0 | +1800.0 | +1800.0 | +1800.0 |
| MV分辨率(mv) | +0.1 | +0.1 | +0.1 | +0.1 |
| MV精度（mv) | +0.1 | +0.1 | +0.1 | +0.1 |
| 校准点(max) | 5 | 5 | 5 | 5 |
| 自动』识别缓冲液 | 27 | 27 | 27 | 27 |
| FET电极接头 | ○ | ○ | ○ | ○ |
| 温度范围(℃) | -5.0~105.0 | -5.0~105.0 | -5.0~105.0 | -5.0~105.0 |
| 分辩率(℃) | +0.1 | +0.1 | +0.1 | +0.1 |
| 精度(℃) | +0.2 | +0.2 | +0.2 | +0.2 |
| 离子选择测量 | | | ○ | ○ |
| 校准点(max) | | | 7 | 7 |
| 直接电位和增量⌒ 方式(标准加/减,分析加/减) | | | ○ | ○ |
| 电导率测量 | | ○ | | ○ |
| 校准点(max) | | 5 | | 5 |
| 电导率、阻抗、盐度、TDS、NaCL盐度 | | ○ | | ○ |
| 温度显示 | ○ | ○ | ○ | ○ |
| 人工输入温度 | ○ | ○ | ○ | ○ |
| 自动温度补偿 | ○ | ○ | ○ | ○ |
| 输入电极数量 | 2 | 3 | 3 | 4 |
| 可选择测量结果参数 | ○ | ○ | ○ | ○ |
| 同时显示几种测量结果 | ○ | ○ | ○ | ○ |
| 日期/时间标记，记忆存储 | ○ | ○ | ○ | ○ |
| 校准提示 | ○ | ○ | ○ | ○ |
| 记录符合GLP | ○ | ○ | ○ | ○ |
| 超大图形显示屏 | ○ | ○ | ○ | ○ |
| RS-232双向接口 | ○ | ○ | ○ | ○ |
| 接通电源，自动检查 | ○ | ○ | ○ | ○ |
