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| Product Code | EC-TDSCANWP1 | EC-TDSCANWP2 | EC-TDSCANWP3 | EC-TDSCANWP4 |  
| Conductivity Range | - | - | 0  to 1990 µS/cm | 0 to 19.90 mS/cm |  
| TDS Range | 0 to 1990 ppm | 0 to 10.00 ppt | - | - |  
| Resolution | 10 ppm | 0.1 ppt | 10 µS/cm | 0.1 mS/cm |  
| Accuracy | ¡¾2% Full Scale |  
| Temperature  Coefficient | ©¬ = 2%/¡ÆC |  
| Power Requirements | 4 x 1.4V button cell batteries; > 100 hrs. |  |