Hi there @eth4
Thanks for your inquiry regarding the compatibility of the mattress tool. I can confirm that the mattress tool with the part number you have provided (971427-01) is compatible with the new Dyson Gen5.
By visiting your local Dyson website and viewing our ‘Accessories’ store, you’ll be able to identify all the tools and accessories compatible with the Gen5 or any other machine that you might own. Read more about ordering accessories on our How to: Order spare parts and accessories article.
For ease, I’ve include the link to the https://www.dyson.co.uk/support/journey/tools/967763-02, which is compatible with the Gen5detect. I can confirm that the compatible machines to this part has not been updated as yet. Happily, this link contains a video of the accessory, showing exactly how to connect and get the best use of of it.
Regards,