EC-70 Swimming Pool and Spa Water Copper Chemical Test Kit LM-3619

If mine is anywhere from .7 to 1.0 is that too high? Tested in bathtub water

How long to think it will be until this product is available to ship?

where is key to results?

What is the difference between lamotte company 3619/ec-70 test kit and lamotte company 3619, which sells for $5 lower price? just the plastic box?