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| Product Name | QiWei PH-220B Pen acidity Meter | SMART SENSOR PH808 Pen pH Meter |
| Product Price | $107.00 | In coming |
| Details | Details | |
| Model comparison | ||
| type | Pen style | Pen style |
| Measuring range | 0~14PH | 0~14PH |
| precision | Miscellaneous | Miscellaneous |
| Annex | ||
| Parameter comparison | ||
| PH Measurement Range | 0.01-14.00 PH | 0.0~14.0 pH |
| PH Measurement accuracy | ±0.02 PH | |
| resolution | 0.01 PH | 0.1 pH |
| power supply | 1.5V battery (LR44) * 4PCS | |
| Dimension | Φ40*185mm | |
| weight | 88 g | |
| Operating temperature | 0-50℃（32-122F） | |
| PH calibrated | 25 ℃ three point calibrated 4.01 6.86 9.18 | |
| Measurement Range | 0-50℃ 32-122F | |
| Temperature resolution | 1℃/2F | |
