TEC Software Download Page

TEC software is offered at no charge. We believe built environments will be improved if more buildings are tested. Automated testing and data collection is a key aspect of meeting this goal.

Our software is offered in 3 categories. Select below and you will be brought to an offering overview with links to download the software directly.

Check the software type you wish to see, or leave all unchecked to see the full list.

Measurement Software
  • Air Tightness
  • Duct Leakage
  • Pressure
Other Software
  • Training Software
  • Software Accessories

Measurement Software

TEC Auto Test

Latest Release May 2021, Version 1.8.0 What’s new: – Added Wind Assistant™ feature to make it easier to get accurate and repeatable envelope test results in windy weather. – Added French language support. – Performance...

TrueFlow® HVAC Air Flow

  The TrueFlow® App is designed to work with the Digital TrueFlow® Grid and DG-8 gauge (or DG-1000) to provide a comprehensive HVAC Air System Analysis.     Available for both iOS and Android, the...

TEC Gauge

Please note:  TEC Gauge (formerly iTEC-700) is a mobile app and cannot be downloaded directly from TEC. It can only be downloaded from either the Google Play or iTunes app store. TEC Gauge is TEC’s...


TEC’s premier software for big building (whole building) & multi-family testing as well as long-term data logging applications. TECLOG4 is designed to monitor and store data from up to 16 DG-1000’s, DG-700’s, DG-500’s or APT...


TECBLAST 1.2 helps you sell profitable duct testing and repair services by quickly analyzing duct airtightness test results. TECBLAST’s user friendly entry screens and choice of professional looking reports makes it simple and fast to...


Now compatible with the TEC DG-1000! TECTITE 4.0  (WiFi) is The Energy Conservatory’s building airtightness test analysis programs for Windows-based computers. TECTITE makes it easier than ever to conduct fully automated blower door tests, and...

Training Software

DG-700 Connect

DG-700 Connect software is a training and quality assurance (QA) tool that allows users to project a virtual image of one or more connected DG-700 digital pressure gauges on a computer monitor/projector screen. The functions...

Software Accessories