Odoo modules for Biometric Integration are available for versions 13, 14, 15, and 16. You can download them from the Odoo App Store. If you have a different Odoo version, Cams Biometrics can provide customizations or upgrades.

To integrate biometric attendance with Odoo:
1. Download the Odoo Biometric Attendance module from the Odoo App Store.
2. Install the module in your Odoo application.
3. Configure the module with the Service Tag ID and Auth Token obtained from your Cams portal's Device Management page. You need a valid API activated to avail these values. 
4. The module syncs attendance data by pushing punch logs from the biometric device to Odoo.
5. Generate reports and analyze attendance data within the Odoo application.

Note that the module focuses on data synchronization. Report generation and other features are handled by Odoo's standard functionality.

For ZkTeco devices, use the Cams Developer Bot to check compatibility or choose a device from the Cams product page.

References:
- Odoo App link: [Odoo Biometric Attendance module](https://apps\.odoo\.com/apps/modules/16\.0/odoo\-biometric\-attendance/\)
\-\ Cams\ Developer\ Bot\ link:\ \[Compatibility\ Check\]\(https://developer\.camsunit\.com/\)
\-\ Cams\ Product\ Page\ Link:\ \[Cams\ Biometrics\ Product\ Page\]\(https://camsunit.com/product/home.html)

Please try the demo of this module in v11 https://apps.odoo.com/apps/modules/14.0/tis_hr_biometric_attendance/ and if it is working, then you request them to downgrade to odoo 8.

Here is the working video: https://www.youtube.com/watch?v=GCq-7WzserA