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| Product Name | YUEFENG PHB-4 Portable acidity Meter | FZchina PHS-10 Portable acidity Meter |
| Product Price | $199.00 | $315.00 |
| Details | Details | |
| Model comparison | ||
| type | Portable | Portable |
| Measuring range | 0~14PH | 0~14PH |
| precision | ±0.01 | ±0.01 |
| Annex | ||
| Parameter comparison | ||
| Measurement Range of pH | 0~14.0 pH | (0.00~14.00)pH |
| PH Measurement accuracy | ±0.01pH | |
| pH resolution | 0.01pH | 0.01 pH |
| temperature compensation | Manual, 0.0~ 80.0℃ | |
| power supply | 6V regulated power supply, 4 AA batteries | 2 AA alkaline batteries or general power supply (DC5V, 300mA, internal positive and external negative) |
| mV Measurement Range | -1999~1999mV | |
| Measurement Range | 0~80℃ | (－5.0~105.0)℃ |
| mV resolution | 1mV | |
| Temperature resolution | 0.1℃ | 0.1℃ |
| Accuracy -mV | ±0.1%(F.S) | |
| Accuracy - Temperature | ±1.0℃ | |
| underVoltage indication | Yes. | |
