SY400 / SY420 / SY440
![SY400 / SY420 / SY440 1 hdr about](https://www.synel.co.uk/wp-content/uploads/2019/03/hdr-about.jpg)
STAND-ALONE ACCESS CONTROL biometric hardware FOR SMALL BUSINESSES SY400, SY420, and SY440 are smart card reading, biometric hardware for access control.
![SY400 / SY420 / SY440 2 machine for access control](https://www.synel.co.uk/wp-content/uploads/2019/03/SY400-pic01.jpg)
Manage and secure 2 doors (Entry and Exit), and up to 8 doors (Entry Only), depending on the model.
With embedded software, it manages time zones, user groups, bank holidays, open or forced door alarms, anti-return and interlock functions.