| Brand | INTBUYING |
|---|---|
| Type | Water Quality Testing |
| Model | Water Quality Testing |
| Features | Portable |
| MPN | 240044 |
| UPC | doesnotapply |
Check the listing for details. Portable TDS Water Quality Testing Pen Water Quality Testing Equipment. Condition: New. Listed at 4.46 USD. TDS Water Quality Testing Pen. TDS represents the total soluble solids content in water, and the lower the TDS value, the purer the water quality. (Note: The above refers to the international standard for direct drinking water!).
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