No endorsement implied. Your "mileage" may vary.
There's also the OpenEVSE project for the DIY inclined...
~20-250VDC (non-PFC version)
~20-350VDC (PFC version; upgradeable to 450VDC with simple modifications; up to 800V possible with more significant mods)
Unless you're making your own SC, and have the comm protocols for the Tesla, it's useless.