One place for the velocity traverse report and fan / plenum ladder-logic install docs.
Worksheet with Testo capture: duct conditions, VP grid, density / velocity / flow, graphs. Works on phone, tablet, and PC — install for offline use.
3×50 HP fans, common header, 4.0 inWC pressure, equal speed, Allen-Bradley VFD install package.
Separate project: ESP32 hub SoftAP + up to 5× ESP-01 nodes for independent air-movement points. Name devices on the hub Wi‑Fi.
Install once on any phone, tablet, or computer. Works with no signal; updates when you’re back online.