Optional connecting accessories: Motion sensor: automatic sensor door Fire/burglar alarm system: hold open or close Access control system: open or close only when objective are identified Hand detective switch: detects to open door in a short distance Live sensor: avoids crush on pedestrian Doorbell system: reminds indoor person to operator door open automatically Specifications: Security system: intelligent anti-overvoltage, anti-overheat protection and intelligent protection on obstruction Perfect smooth-running thanks to the encoded technology Synchronous technology applied in host and slave door Push and go function Battery backup management module Intelligent control lock system Control programmer Remote control function: open, hold-open, close and lock Hold-Open time adjustable: 1 to 60s Opening time adjustable: 3 to 7s Closing time adjustable: 3 to 7s Opening angle adjustable 60 to 120 degrees Power supply: 230/110V AC, 45W Dimensions: 450 x 102 x 78mm Mounting mode:: In-swing (with slide arm mounted on the door frame) Out-swing (with slide arm mounted on the door frame) Out-swing (with articulating arm mounted on the door frame) In-swing (with articulating arm mounted on the door)