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| Product Name | QiWei PHB-5 pH Meter (portable microcomputer) | YUEFENG PHB-4 Portable acidity Meter |
| Product Price | $107.00 | $199.00 |
| Details | Details | |
| Model comparison | ||
| type | Portable | Portable |
| Measuring range | 0~14PH | 0~14PH |
| precision | Miscellaneous | ±0.01 |
| Annex | ||
| Parameter comparison | ||
| PH Measurement Range | 0~14pH | |
| level | Level 0.1 | |
| Measurement accuracy | ±0.1pH | |
| Temperature compensation Range | without | |
| power supply | 1 DC 9V battery | 6V regulated power supply, 4 AA batteries |
| Dimension | 120x40x34mm | |
| weight | 110g | |
