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| Product Name | SMART SENSOR PH818 Pen pH Detector | SMART SENSOR PH838 Pen pH Meter |
| Product Price | $104.00 | $104.00 |
| Details | Details | |
| Model comparison | ||
| type | Pen style | Pen style |
| Measuring range | 0~14PH | 0~14PH |
| precision | ±0.05 | ±0.05 |
| Annex | ||
| Parameter comparison | ||
| PH Measurement Range | 0.00~14.00 ph | 0.00~14.00pH |
| Measurement intrinsic error | ±0.05 ph | |
| Instrument Repeatability | ±0.03 ph | ±0.03 |
| Dissolved oxygen temperature compensation Range | 0℃~70℃ | |
| Temperature accuracy | ±1℃ | ±1℃ |
| Measured solution temperature | 0℃~60℃ | |
| resolution | 0.01 ph | 0.01pH |
| data retention | Yes. | |
| screen display | LCD large screen display | |
| ° C/° F temperature unit conversion | Yes. | |
| Automatic shutdown function | Yes. | |
| Self Adjustment | Yes. | |
