RE: SST velocity
Thats a nice one and is easier to set up than the Chrony F1 Master that I have. I got mine off ebaybrand newfor around $90 delivered. I like the remote display that mine has. I can set it up to 15 or so feet away and still have the display on the bench where I can read it without having to strain to see it. It sure comes in handy for verifying loads or whatever you need to check speed on.