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Disodium Ethylenediamine Tetra Acetate (EDTA)
For nutrient solutions correction: 5 mL per Liter to address deficiencies
configured for 277V commercial electrical systems
500 Packets Per Master Case: One case
Hanna GroLine HI98331 Direct Soil EC Tester | Penetration Probe Compost Teas Disodium Ethylenediamine Tetra Acetate (EDTA)What a Direct Soil EC Meter Saves You The old routine was a slurry. Take a sample, mix it with distilled water at a set ratio, wait, filter, then read the extract. It works, and it takes long enough that most people skip it. The HI98331 puts a stainless steel penetration probe into the substrate and reads it where it sits. Range runs 0 to 4000 uS cm, resolution 1 uS cm. One button, one point calibration, done automatically against a 1413 uS cm
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