Many users do not know that Shenzhen DT-172 clones exist, but the software is universal. You can sometimes find the working driver labeled CH341SER.EXE (This is the generic chipset driver). We will use this in the fix below.
| Symptom | Fix |
|---------|-----|
| Software opens but no data | Click "Connect" or "Read Logger" – manual trigger required. |
| Wrong date/time on logged data | Software reads from PC clock. Set logger internal clock via "Set DateTime". |
| "No response from device" | Replug logger. Try different USB port. Reinstall driver. |
| Graphs not showing | Install missing OCX controls (run installer as Admin; use regsvr32 msflxgrd.ocx if needed) |
| Data export fails | Save as CSV (never XLS directly). Open CSV in Excel. |
The CEM DT-172 connects via USB, but internally, it operates as a serial device. It utilizes a specific USB-to-UART bridge chip (commonly the CH340 or Silicon Labs CP210x). While the device may power on when plugged in, Windows will not communicate with the specific data logging software until the correct "bridge" driver is installed. cem dt172 data logger software download fix
Warning: only download software and drivers from official manufacturer sites or trusted vendors. The steps below assume Windows (most common for DT-172 utilities); adapt if you use macOS/Linux.
Because this is legacy hardware, many reputable electronics forums host the files. Many users do not know that Shenzhen DT-172
The CEM DT-172 is a capable data logger that suffers from poor software support. The "Download Fix" is less about a broken file and more about driver matching.
Recommendation: If you purchase the DT-172, plan to spend the first 20 minutes troubleshooting the USB connection. | Symptom | Fix | |---------|-----| | Software
Once connected, the device works exactly as intended, providing low-cost, reliable environmental logging. However, for professional users requiring seamless plug-and-play functionality across Mac and Windows without driver headaches, investing in a higher-tier brand (like Onset HOBO or Testo) might be worth the extra cost.
This guide provides a structured troubleshooting and fix pathway for issues related to downloading, installing, or running software for the CEM DT-172 environmental data logger (temperature/humidity).
Note: CEM Instruments does not maintain a centralized, version-tracked public software archive. Most "fixes" involve driver conflicts, OS compatibility, or corrupted downloads.
The CEM DT-172 is a popular, compact USB temperature and humidity data logger used in warehouses, laboratories, HVAC monitoring, and transport logistics. While the hardware is reliable, users frequently encounter problems downloading, installing, or running its accompanying Windows software. This long-form guide provides a step-by-step fix for the most common software issues, safe download sources, driver setup, and alternative logging solutions.