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Free shipping on HK orders over $2000
Welcome!
Models:
90301 , 90302
90304 , Others
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| Model | Measurement Range | Gradation |
| 90301 | pH 1-12 | 1-2-3-4-5-6-7-8-9-10-11-12 |
| 90302 | pH 1.0-4.3 | 1.0-1.3-1.6-1.9-2.2-2.5-2.8-3.1-3.4-3.7-4.0-4.3 |
| 90304 | pH 5.0-8.0 | 5.0-5.3-5.6-5.9-6.2-6.5-6.8-7.1-7.4-7.7-8.0 |