I. Fail Safe: Adjustable fail-safe (power to lock) Adjustable to fail-safe (power to lock) for public places. Face Plate 205Lx35WX40H(mm) Strike plate 90Lx25Wx2H(mm) Bolt 16mm(Throw) x 16mm(Diameter) II. Built-in oval cylinder as unlocking device Use of oval cylinder to unlock when power cut occurred or during emergency Built-in photo couplers door open push button input contact. Door will lock again automatically when door is not open within 9 seconds III. Bolt lock Suitable For Wooden Door,Glass Door,Metal Door,Glass Door Fail Safe power to lock Voltage DC12V Start Current 960mA Standby Current 130mA Face place material High Aluminum,Carrulous Line Finished IV. Bolt lock with timer to set With a delay timer,When you swiping your card and do not open the door,the bolt lock will lock itself with in 0/3/6/9S V. Four line electric bolt lock with door state detection output point With detection when door opened,the detection point get red,when door closed,the detection light turned off. Detection point advise you working status .