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| Product Name | QiWei PH-20 pH Meter (pen type) | QiWei PH-20W pH Meter (pen type) |
| Product Price | $100.00 | $106.00 |
| Details | Details | |
| Model comparison | ||
| type | Pen style | Portable |
| Measuring range | 0~14PH | 0~14PH |
| precision | Miscellaneous | Miscellaneous |
| Annex | ||
| Parameter comparison | ||
| PH Measurement Range | 0.1~14pH | 0.1~14pH |
| PH Measurement accuracy | ±0.1pH | ±0.1pH |
| PH calibrated | PH: 25 ℃ three point calibrated (4.0, 6.9, 9.2) | PH: 25 ℃ three point calibrated (4.0, 6.9, 9.2) |
| resolution | 0.1pH | 0.1pH |
| Measurement Range | 0~50℃/32~122℉ | 0~50℃/32~122℉ |
| Measurement accuracy | 1℃ | 1℃ |
| Temperature resolution | 0.1℃(1℉) | 0.1℃(1℉) |
| Permissible Ambient Temperature | 0~50℃ | 0~50℃ |
| power supply | 1.5V battery (LR44) * 4PCS | 1.5V battery (LR44) * 4PCS |
| Dimension | Φ40*185mm | Φ40*185mm |
| weight | 88g | 88g |
