Fangrui Product Details Durable. Fine Workmanship And Style. S4a Model: Acb-001 Description: Control 1 Door, Get In And Out Door By Swiping Card, Or Get In By Swiping Card And Get Out Door By Button Door Controlled: 1 Door / S4a Model: Acb-002 Description: Control 2 Doors, Get In And Out Door By Swiping Card, Or Get In By Swiping Card And Get Out Door By Button Door Controlled: 2 Door / S4a Model: Acb-004 Description: Control 4 Doors, Get In The Door By Swiping Card, And Get Out Door By Button Door Controlled: 4 Door Communication: Tcp/ip 10m/100m Adaptive Power Supply: 12vdc 4-7a Power Consumption Of Circuit Board: Less Than 100ma Input Format Of Reader: Wiegand 26 (all Card Reader With Compatible Protocol, Such As Motorola, Hid, Em, Ic One Etc) Door Opening Time Extending Setting: 1-600 Seconds(adjustable) Max Q Ty Of Controller: No Limit Material: Plastic Colour: As Shown Package Contents: 1 X Entry Attendance Access Panel Only The Above Package Content, Other Products Are Not Included. Note: Light Reflection A