F4 Plus is a professional access control product, specially designed for the international high terminal access control market. It has been developed by ZK Software and one of its partners, a world-famous security products company since two years ago. In order to develop the access control market in China, it was officially released in the mainland of China in August ,2005. F4Plus adopts American U.are.U sensor to collect the fingerprint images, the quality of the fingerprint identification is improved obviously, with ZK multi-engine Biokey algorithm, the identification speed increased 1.5 times as before, it can deal with 2000 qualified or unqualified average distributed fingerprints, it makes the system easy to operate, reliability, accuracy are all improved. ZK best fingerprint RIS algorithm system is also the good option for customer; the identification speed can reach 7000 per second.

F4 Plus use the professional static electricity prevention and anti jamming design, all of the input or output interface are protected from over-voltage and frequency, it has the function of anti-dismantlement alarm and professional alarm, as well as the voltage and PFK watchdog inspection, outstanding quality.

F4 Plus supports Mifare Card or ID Card, support professional access control functions, most suitable for controlling and administrating the large entrances and exits; imbedded Web server management which is the most popular now In the world, it can be controlled by normal internet browser, operation and inquiry form, there is no need to use the specific computer, its application software is imbedded in the machine, simply realize remote information browse and management.

F4 Plus has already reached the top flight of the international technology, not only in the hardware or software, but also the using function. It is also the top class access control product in ZK Inc., it can fulfill all kinds of demands of the customers.