can anyone point me in the right direction >looking for a

File: microchip-de-ordenador.jpg (44KB, 300x260px) Image search: [Google]

44KB, 300x260px

can anyone point me in the right direction

>looking for a basic microchip/sensor system
>chip comes within close proximity of sensor, sensor kicks on
>an example of this would be: have a little key fob with chip, the chip comes within 8 inches or less of locked cabinet, cabinet opens

>does something like this readily exist? or would have to be a custom job situation
>thanks bros