Downloading DOP 4 1.9.5.0 from the developer's website was possible when we last checked. We cannot confirm if there is a free download of this software available.
We cannot guarantee that the program is safe to download as it will be downloaded from the developer's website. Before launching the program, check it with any free antivirus software. The most popular version among DOP 4 users is 1.9. DOP4.exe is the most common filename for this program's installer. This free tool was originally produced by Hauch & Bach. DOP 4 lies within System Utilities, more precisely Device Assistants.
From the developer:
The DOP 4 application is a tool for calibration and tarring of the H&B load cell digital amplifier devices. With the DOP 4, you can monitor weight values real time and do average measurements to a Scope picture, as well as sending raw command parameter values to a device from the built in Terminal.
You may want to check out more software, such as DOP.v.2.06, Donation Organizer Pro or DopeWars, which might be similar to DOP 4.