Sold as spares and repairs so no returns. Heat Link unit only, inside the original box. No generation mentioned, but it was used with a Nest learning thermostat 3rd gen. Used for a month in 2023 as a replacement for an original Heatlink, but then stopped working. Issue not identified by sparky & these parts haven't been tested since. A few streaks of paint on outer casing. Sold as spares and repairs so no returns.
eBay