Cem Dt172 Data Logger Software [upd] Download Fix Jun 2026

The primary reason the CEM DT-172 software displays an "Error: Device not found" or "COM Port Cannot Open" message is a missing or corrupt USB-to-Serial driver. The hardware relies on an internal chip that requires specific virtual COM port drivers. Manually Install the Driver

Upon reboot, press 7 or F7 to choose .

If you're an advanced user or using a different operating system, you might explore generic terminal software that can communicate with serial devices over USB. However, this would be a more complex path than using the official Windows software. The official analysis software is the most straightforward way to generate graphs, set alarm thresholds, and export data to Excel, as described in the user manual. cem dt172 data logger software download fix