Golf range finder to Arduino

I need help for a project that uses cheap laser range finders such as a golf range finder bought on AliExpress. Basically I need to grab the output values from the range finders (range) and push that data onto a Arduino/ raspberryPi. To be honest this has be a huge holdup in the project because I can't figure out how to do this and this post is my last resort. How do I even begin?

I've been following this post …

arduino finder reverseengineering