Save a calculation on any engine and it files itself into the active chamber. Baselines, snapshots and presets live together, and the vault flags it when one reading contradicts the others — pH against stage, EC against runoff, water temperature against dissolved oxygen.
The vault is plain JSON stored in this browser. Export it as a backup, move it to another device, or paste an earlier export back in.
Field Protocol Dispatch | Vol. 2026
Grow-room math, written up once a fortnight
The deterministic models behind the tools: root-zone misting, vapor pressure deficit, and nutrient cost math, plus the honest limits of each. Two short emails a month, no sponsors, no invented numbers.
Published Bi-weekly
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