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| Product Name | QiWei DDB-12H Conductivity Meter (Pen) | QiWei DDBJ-350 Conductivity Meter (Portable Microcomputer) |
| Product Price | $106.00 | $173.00 |
| Details | Details | |
| Model comparison | ||
| Type | Pen | Portable |
| Range | ＜20 us/cm | ＜2000 us/cm |
| Precision | 2.0 | 1.0 |
| Resolution | 1 | 1 0.1 |
| Temperature compensation | Automatic | Automatic |
| PH | Without | Without |
| TDS | without | without |
| Salinity | Without | Without |
| Resistivity | Without | Without |
| Accessories | ||
| Parameter comparison | ||
| Measurement parameter | conductivity | conductivity |
| Measurement Range | 0~19.99 mS/cm | 0~199.9μs/cm；200~1999μs/cm；2.00~19.99mS/cm；20.0~199.9mS/cm |
| measurement error | ±2% F.S | ±1.0% F.S |
| resolution | 1 uS | 0.1/1μs/cm ；0.01/0.1ms/cm |
| Temperature compensation Range | 0~50℃ | 10~50℃ |
| power supply | 6V (3 * AG13 button battery) | |
| Dimension | 188*38mm | |
| weight | 82 g | |
| Operating temperature | 0~50℃ | |
| Calibrating point | 2 point automatic correction | |
| shutdown mode | Automatic shutdown in 5 minutes | |
| Low Voltage prompt | Yes. | |
| Temperature unit | ℃/℉ | |
| hold function | Yes. | |
| display screen | Conductivity detector and temperature dual display | |
| Temperature compensation method | automatic | automatic |
