RFID reader thats scan whole door

I looking into what hardware i need to scan things that going in and out a door.

Say that i have 10 things thats going in and out throw a door every week and i like to know when and if the things going throw the door.

There going to be people careing the things so its need to scan the whole door.

Any ideas?

Search for RFID readers used in livestock management - there are solutions for long range readers etc that may be able to solve your problem