| May 01, 2021, 5:06 pm Bjr, For the PH probe for procopi PH 220 you mark: "Ready to use instantly: Our probe ships in a bottle with a proprietary storage solution for immediate use. |
| May 01, 2021, 5:07 pm Does this mean that there is no need to calibrate with PH7 buffer solution? Thank you |
| bot: Absence message May 01, 2021, 5:07 pm We are busy at the moment. Please accept our apologies. If you leave us your E-mail we will respond as soon as possible. |
| Hello, no you need the buffer solution |
| May 01, 2021, 5:09 pm |
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