receive the time measured by the cpu 10 and to convert the bcd input of the measured time into a seven segment output the seven segment output is then sent to a visible display 52 which is coupled to the bcd to seven segment decoder driver 50 thus making the time visible to the user a decoder 60 is coupled to an controlled by the cpu 10 to selectively activate the parallel input output device 20 the non volatile memory 40 volatile memory 42 counter timer controller 44 or bcd to seven segment decoder driver 50 a lock driving circuit 32 an alarm driving circuit 34 and an indicator or light emitting diode 36 are coupled to the cpu 10 through the parallel input output device 20 the lock driving circuit 32 is utilized to open the lock by energization of a deadbolt solenoid for example as is already well known in the art exemplified by the sopko patent aforementioned in response to an open signal output by the cpu 10 upon the correct password being keyed in by the user the alarm driving circuit 34 is utilized to drive an alarm system not shown in response to an alarm signal output by the cpu 10 upon the number of times an incorrect password is keyed in reaching a predetermined limit for example three times the alarm system may be an alarm bell a system automatically alerting the police a building alarm system or the like the light emitting diode led 36 will be turned on for a predetermined period of time for example two seconds to indicate that the keyed in password is incorrect in response to a light signal output by the cpu 10 the password lock of the.