I've got 7 of the R Pro 1's integrated into Home Assistant. They all are ceiling mounted with the ceiling mount kit. I have the 2412 as well as the 2450. They are all connected via ethernet for both power and data.
First, I will say I really like them. Hats off to Apollo for finally addressing the cable issue for those of us who have open ceilings, pot lights, ways to access everywhere. The ceiling mounts are fantastic. flush, almost invisible.
Delivery to Canada has been great as they have a depot in Toronto which is where I'm located.
Here's my problem. Not really a problem, more of a use case warning to others who want to ceiling mount. My ceiling mount works great, but I don't need individual (more than 1) target recognition, I don't need to tell if a target is moving towards or away, I don't need multiple zones in a room.
If you do, the ceiling mount 2450 is not idea. It's almost a waste of money. Trying to have zones being accurately set when the chip is really for wall/table mount is very difficult. I do set up a single detect zone for the 2450, but it's really just a backup for the 2412.
The rooms I'm covering are generally small. Landing on a staircase, top and bottom. Bathroom. Shower. Enclosed toilet. The 2412 is a rock-solid chip that is good at movement detection and still detection. The 2450 helps in the 2 larger rooms I have, and having 8 foot ceilings helps. But for small spaces, you will want to rely on the 2412 in the UI settings.
The 2450 has another well-known problem. It drops out. It misses still targets. And for me that was causing me to have issues where lights would drop out because the 2450 said clear but the 2412 still showed a target. It's also very hard to calibrate, dots on the custom card jump around, don't move smoothly as you walk. I can't believe people actually use it reliably.
So be aware of its limitations. At some point HLK or someone will come up with a better chip, or maybe something designed more for a ceiling mount. I'm wondering, and if anyone from Apollo monitors here, what would happen if I took out the 2450 in a few of them and just left in the 2412. Why would I do that? Power consumption.
Justin was responsive in listening to me about the fitting of the board mount into the ceiling mount and they made a small change to the manufacturing.
In terms of support, I'm not really happy. I don't like Discord. It's made for Geeks. And the person who moderates the Discord has pretty much ghosted me because I need more hand-holding at the start than just "check the documentation."
But overall, if you can live with the limitations for room size for ceiling mount, these are a great product.