A modular scanning apparatus for access management and for being operably connected to one or more locks such that the scanning apparatus scans an input from a user to open and provides access there through, the apparatus comprising: a housing unit, the housing unit comprising a top plane, a bottom plane, a front wall, a rear wall, and a pair of substantially opposing side walls defining an interior portion within wherein at least one of the walls comprises a cavity providing access to the interior portion; a scanner assembly placed within the housing unit, the scanner assembly comprising: a base scanner interface board; a scanning unit connected to the scanner interface board, the scanning unit comprising a scanning portion extending out of the cavity; a connector board connected to the scanner interface board, the connector board comprising a plurality of first kind of electronic connectors; a power board connected to the connector board for providing power to the scanning apparatus; a plurality of removable individual functionality print-boards connected to the connector board; a holding mechanism for holding the scanner assembly within the housing: characterized in that the plurality of removeable individual functionality print-boards are stacked on the top of each other wherein each of the individual functionality print-boards is electronically connected to the connector board at one or more of the plurality of first kind of electronic connectors via a one or more second kind of electronic connector, and in that the scanning unit is placed in an angular position to be able to scan a substantially horizontal plane under an angle between 1° to 89° and preferably between 5° and 45°, and in that the apparatus comprises a mounting mechanism for mounting the housing on a mounting surface. a housing unit, the housing unit comprising a top plane, a bottom plane, a front wall, a rear wall, and a pair of substantially opposing side walls defining an interior portion within wherein at least one of the walls comprises a cavity providing access to the interior portion; a scanner assembly placed within the housing unit, the scanner assembly comprising: a base scanner interface board; a scanning unit connected to the scanner interface board, the scanning unit comprising a scanning portion extending out of the cavity; a connector board connected to the scanner interface board, the connector board comprising a plurality of first kind of electronic connectors; a power board connected to the connector board for providing power to the scanning apparatus; a plurality of removable individual functionality print-boards connected to the connector board; a holding mechanism for holding the scanner assembly within the housing: characterized in that the plurality of removeable individual functionality print-boards are stacked on the top of each other wherein each of the individual functionality print-boards is electronically connected to the connector board at one or more of the plurality of first kind of electronic connectors via a one or more second kind of electronic connector, and in that the scanning unit is placed in an angular position to be able to scan a substantially horizontal plane under an angle between 1° to 89° and preferably between 5° and 45°, and in that the apparatus comprises a mounting mechanism for mounting the housing on a mounting surface. a base scanner interface board; a scanning unit connected to the scanner interface board, the scanning unit comprising a scanning portion extending out of the cavity; a connector board connected to the scanner interface board, the connector board comprising a plurality of first kind of electronic connectors; a power board connected to the connector board for providing power to the scanning apparatus; a plurality of removable individual functionality print-boards connected to the connector board; a holding mechanism for holding the scanner assembly within the housing: characterized in that the plurality of removeable individual functionality print-boards are stacked on the top of each other wherein each of the individual functionality print-boards is electronically connected to the connector board at one or more of the plurality of first kind of electronic connectors via a one or more second kind of electronic connector, and in that the scanning unit is placed in an angular position to be able to scan a substantially horizontal plane under an angle between 1° to 89° and preferably between 5° and 45°, and in that the apparatus comprises a mounting mechanism for mounting the housing on a mounting surface.