All 12 items are New. Genuine ADT product manufactured by Honeywell/Resideo for ADT.
I took an item out of the box to see and show you the box's exact contents.
You'll receive 12 boxes. Each box contains: one sensor with the contact, the installed battery, the manual, and the mounting screws (as it comes from the manufacturer) - Nothing else is included.
Please note: the boxes you'll receive can show some signs of shelf life/dust/soiling (I had to fix some boxes with tape). One box is missing the manual - Please see the pictures.
Please ensure this is the exact item you need before buying.