| Brand | Hanna Instruments |
|---|---|
| Type | Hydroponics |
| Model | 716850 |
| Compatible Model | Universal |
Check the listing for details. Hanna pH7 Calibration Solutions -- 16 oz Hydroponic Garden Meter. Condition: New. Listed at 50.36 USD. All Hanna pH7 calibration solution bottles come with a pH Vs. temperature chart together with the production lot # and expiration date to guarantee maximum accuracy. Formulation Hanna pH buffers are made of potassium dihydrogen phosphate and disodium hydrogen phosphate and are standardized with a pH meter calibrated to NIST primary standard buffer solutions (NIST 186Ie & 186IIe and NIST 158 g S.R.M.).
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