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Function introduction ? ?? CL Security Interlock door is a intelligent access control device with high security. Circular frame structure design, the bottom is a circular base, DC motor drive smooth movement of the circular arc door wing. The authorized person entering the controlled area should carry out two-factor authentication to prevent trailing and all kinds of fraudulent passage. Suitable for all kinds of high security level field. ? ?? The series has CL600 and CL900 two models, CL600 is suitable for single access; The CL900 has more space and is suitable for situations with small equipment such as a cart or wheelchair。 ?