Observed arrival · 2026-09-30

Thermal Gauge, an offline HVAC field kit

thermalgauge.com Visit website

Editorial interest 84/100 Selection signal · not a rating of the site

A phone-friendly HVAC app combines charge and airflow calculations, troubleshooting references, and a technician-style assistant that works offline.

Landing page captured for the 2026-09-30 issue.

For: HVAC technicians, instructors, and students
Worth noticing: The site says nameplate and gauge photos are read on-device and never leave the phone.

Field notes

The tool list spans refrigerant charge, electrical readings, component change-outs, package units, and water-source heat pumps. Entries are retained and temperatures can be switched between Fahrenheit and Celsius. Student exercises are grouped into beginner, apprentice, journeyman, and expert tiers; the page describes instructor-set setups with power locked out and explicit limits on unsafe actions.

Observed signals

Read the marks

Editorial observations of this landing page, not a rating.

○OpenPublic substance visible

✦PrettyNotable craft visible

●ProPolished or operationally mature

◎NicheUnusually specific use

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