When calibrating, it is necessary that your pH meter and your calibration fluid have the same temperature. We have very old & wrinkly green fingers - so we know a thing or two! The ESSENTIALS pH Meter is truly an essential piece of equipment. Overview One Stop Grow Shop StokeUnit C1, Fenton Trade ParkStoke-on-TrentST4 2TE To calibrate the Essentials pH Meter you will need a bottle of Buffer 7 (the meter comes with a small sachet). It is water and drop resistant but must not be fully submerged. GSH Retail Ltd of Sheffield offer a huge selection of indoor plant lighting, home hydroponics grow systems, hydro and organic horticultural supplies, grow light and other grow-room equipment & indoor gardening accessories.
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Joined in 2023 
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