You can find the Micro-HID room in Heavy Containment; you will know it is the correct room when you see a large pane of glass between two doors. You will need a keycard with Armory Access Level 3 to open the door inside, and the Micro-HID will be sitting on the table.
From there, go down to Light Containment. Use up part of the Micro-HID's charge, then drop it inside of SCP-914. Activate 914 on the 1:1, Fine, or Very Fine setting and you will get the achievement.