| Model | ES-421 | Cat.No. | 4210 |
| Measurement Method | Conductivity method | Measurement Range | 0.00 to 10.0% ( 100g ) of salt concentration |
| Minimum Indication | 0.01% for salt concentration of 0.00 to 2.99% 0.1% for salt concentration of 3.0 to 10.0% |
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| Measurement Accuracy | Displayed value ± 0.05% ( for salt concentration of 0.00 to 0.99% ) Relative precision ± less than 5% ( for salt concentration of 1.00 to10.0% ) |
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| Temperature Compensation | 10 to 40°C (Automatic Temperature Compensation) | Ambient Temperature | 10 to 40°C |
| Power Supply | 006P Dry battery (9V) | Dimensions & Weight | 17×9×4cm, 300g (Main Unit only) |
| Optional | • 2.84% NaCl Solution AB284 : RE-120284 * Calibration Certificate : Contact an ATAGO representative for details. |
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