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| Product Name | QiWei PHB-4 pH Meter (portable microcomputer) | FZchina PHS-10 Portable acidity Meter |
| Product Price | $173.00 | $311.00 |
| Details | Details | |
| Model comparison | ||
| type | Portable | Portable |
| Measuring range | 0~14PH | 0~14PH |
| precision | ±0.01 | ±0.01 |
| Annex | ||
| Parameter comparison | ||
| Measurement parameter | pH, mV, temperature | |
| PH Measurement Range | 0~14pH | |
| Measurement accuracy of pH | ±0.01pH | |
| resolution | pH: 0.01pH/Temperature: +/- 1 ℃ | |
| Measurement Range | 0~ 60℃ manual/automatic compensation | (－5.0~105.0)℃ |
| Stability (zero drift) | ≤ 0.01pH +/- 1 word/2h | |
| Input Impedance | ＞1x1012Ω | ≥1*10¹²Ω |
| Data storage | without | Store 200 sets of data |
| power supply | 1.5V battery/4 pcs | 2 AA alkaline batteries or general power supply (DC5V, 300mA, internal positive and external negative) |
| Dimension | 180*80*30mm | |
| weight | About 0.5Kg | |
| Standard Electrode Reagent | E201-C-W Plastic shell PH temperature Electrode; PH standard calibrated sample; No. 7 DC1.5V battery 4 pcs | |
| Permissible Ambient Temperature | 0~40℃ | |
| Allowable relative humidity | <85% | |
| Solution temperature compensation Range | 0~60℃ | |
| Power consumption | 2W | |
| Measurement accuracy | ±1℃ | |
| mV Measurement Range | ±1999mV | |
