you are buying the Schlumberger Vectron Solid State Watthour Meter SV2SD 240-480V 3W seen in pics.
we bought this years ago for one of our buildings to split utilities for a renter. our electrician said it worked fine but wasn't the right set up for the facility. we put it on a shelf in the office and forgot all about it.
$75 shipped anywhere in the US. we will guarantee that it works on arrival. no longer term warranties, guarantees, or returns. let us know if there is an issue within 3 days of receipt.