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| Product Name | QiWei PHB-5 pH Meter (portable microcomputer) | QiWei PH-20B Pen acidity Meter |
| Product Price | $107.00 | $102.00 |
| Details | Details | |
| Model comparison | ||
| type | Portable | Portable |
| Measuring range | 0~14PH | 0~14PH |
| precision | Miscellaneous | Miscellaneous |
| Annex | ||
| Parameter comparison | ||
| PH Measurement Range | 0~14pH | 0.1-14.0 PH |
| level | Level 0.1 | |
| Measurement accuracy | ±0.1pH | |
| Temperature compensation Range | without | |
| power supply | 1 DC 9V battery | 1.5V battery (LR44) * 4PCS |
| Dimension | 120x40x34mm | Φ40*185mm |
| weight | 110g | 88 g |
