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How long will you take?

Find quick answers to frequent pre-sale questions asked by customers

For ZKBioSecurity3.0 , it offer 30 days for you to test , no need to get the license. you are free at the first 30days after installed . And if you dont think it is enough for you , you could check the demo link in our website to test more

Check if you have access control menu,you can have access control function or external alarm,only one of them. When you have access control function disabled,you will see the menu in system setting to switch internal/external alarm.