The circuit developed here will count the number of visitor entering or exiting from door of auditorium or hall or any other place. Depending on the interrupt from the sensors, the system identifies the entry and exit of the visitor. On the successful implementation of the procedure, it displays the number of visitor present in the room. Therefore it can be economically implemented in all the places where the visitors have to be counted and controlled. This circuit is good enough for only one person entering at a time. It will also give you visual indication of circuit with the help of LED. It is operated at wide range of temperature from 5V to 20V. The big advantage of the 4026B counter IC is that it can drive a 7-segment display without needing a decoder driver IC. It will count the number of visitor up to 99 which can be increased by cascading more 4026 IC.