RE: Info needed....
Your thinking about the Active Scrape Dripper from WildLife Research , it comes in a combo package where you buy the Day Time dripper and a big bottle of Active Scrape.
Yes it does work for early season to mid season ,just fill the dripper half way and hang high enough above a licking branch and make a mock scrape below the dripper.
Remember you want to put the dripper high enough that the deer won't knock it off or down , when it gets close to the rut you'll want to put some doe pee or some tarsel gland sent in the dripper to keep the bucks and does coming back and hitting your scrape.