HOW DO YOU MAKE THAT A CHEST RECOGNIZES THAT Z: 100 earth has been put in and that a dropper then drops what (minecraft bedrock)?

HOW DO YOU MAKE THAT A CHEST RECOGNIZES THAT Z: 100 earth has been put in and that a dropper then drops what (minecraft bedrock)?

With a comparator.

With only 14 steps for the level of a container.

It can also distinguish the blocks

Should test with hoppers filter. I think that works.

But I haven't built anything like that yet.