# Transformer Oil DGA Reader

Transformer Oil DGA Reader is an offline Android app by Anvilfield for transformer commissioning, service, and data center electrical teams.

Core job: grade a transformer oil test page, calculate water percent saturation, plot Duval Triangle 1, Triangle 4, Triangle 5, and Pentagon results, show derived IEEE C57.104 condition status, track gas drift by serial, and export PDF, CSV, PNG field card, and fleet CSV records.

Scope: the app is a field aid. It does not measure oil or gas and is not an energize-or-not ruling. The lab or calibrated portable kit is the instrument. A qualified reviewer makes the energization and maintenance decision.

Price: free for three transformers. Paid access unlocks unlimited units, clean exports, and saved presets through Google Play Billing: $19.99 monthly, $199 annual, or $499 lifetime.

Offline behavior: oil entry, grading, Duval plots, C57.104 status, trends, local storage, and exports run on the device. Google Play Billing restore and Android share targets may use platform network access.

Local data controls: Settings includes Clear local records to remove jobs and samples from the device. Export files saved outside app storage are controlled by the destination folder or app the user selected.

Publisher: Anvilfield.
Website: https://anvilfield.com/duval_read_dc
Privacy: https://anvilfield.com/duval_read_dc/privacy
Support: support@anvilfield.com