Always start at the official source. Go to the ZKTeco official website (zkteco.com). Navigate to "Support" > "Download" > "Software". Pro Tip: If the latest version (e.g., ZKBioSecurity 2.0) is too heavy for your PC, search the legacy archives for "Attendance Management Suite 3.2" which includes the Patrol module.
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After installing, connect the Patrol 20 via the included USB data cable. The "extra quality" version will include the correct USB-to-Serial drivers (CH340 or PL2303). Do not use generic Windows drivers; use the ones packed in the "Driver" folder of the download. Continuous integration:
Look for the file name resembling ZKPatrolManager_Setup_v3.5.0_RC.exe or similar. Ensure the file size is between 200MB and 500MB (smaller files are likely fake). The release date should be within the last 3 years for "extra quality" compatibility. Release process: