That does look like the bottom of an S3 as its in the same location as my C1 and the DB rate is the same too so its quite possible that it is.
This is on the underside by where the gimbal cover clips in.
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And my 2025 one @Marton. I don’t know, but it looks a bit as though the part which it’s embossed is a small separate cover?
So there are DJI drones released before 2026 with UK class marks. In their overview, the CAA don’t appear to cover models released before 2026 but manufactured 2026 onwards;
Class marks
While legacy drone or model aircraft models can continue to be sold, any new models placed on the market from 1 January 2026 must have a UK class mark, from UK0 class to UK6 class.
If you bought your drone or model aircraft before 1 January 2026, it’s unlikely to have a UK class mark. You can still fly your drone or model aircraft by following the rules in this Drone Code that apply to you based on the weight of your aircraft.
I had an online chat on the dji.com store and (just as Crackerjack reported earlier) I was told that the Air 3s models they have for sale now have the UK1 mark. So I have ordered one and it should be with me tomorrow - I will give an update once I have it!
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I wonder which other drones are quietly leaving the factory with a UK stamp?
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Also had a chat with DJI chat person about the fairness of the same drone having a UK mark on them v a drone bought at the end of Dec but before the UK1 drones hit the shelf and was basically told that they are aware of this and maybe suggested that something might happen closer to 2028 to make it right - was told that DJI did not want to upset their customers - mmm
So as long as we keep beating the drum maybe something will change - really the CAA could solve all this agro but saying EU Cx drone = UKx drone for as long as the UK / EU class is in use like it is today - sorted !
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Aren’t they C1 stickers, the UK1 ones are preceded by the letters UK.
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Air Pixel will make you UK class mark stickers. Unless something has been changed in the firmware between C0 and C0+UK0 drones of the same type (e.g.: Air 3S), there seems to be nothing to stop you reclassifying it yourself, in practice.
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The DJI Air 3S firmware hasn’t been updated since June 2025 
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Lets not mere technicalities get in way
Pick holes in the CAA thought process ;o)
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so what was it that updated to change the max speed of the C1 drone then ? Was that not a firmware that we did to put that block in place - mmm or was that the controller software for the DJI Fly app ?
Didn’t we determine that imposed restriction was DJI quietly forcing out an update in the background, without telling anyone?
If memory serves, only devices that were connected to the internet were impacted? 
Sorry Pete, can’t recall now, it’ll be buried in this thread somewhere 
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Is there a difference between a sticker and actual classification?
Maybe not, in some cases, it seems? 
So after dji.com chat told me yesterday that the Air 3S models they now supply have a UK1 label I ordered one and it came today.
Guess what - no UK1 label!
So I chatted with dji.com again today and was eventually told:
So this one is being retuned for a refund and will try one of their physical stores…
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Gotta love a chatbot
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The plot thickens… Sorry you didn’t get a UK1 model 
Don’t forget that DJI don’t have any owned / run / managed stores in the UK.
Those “hassleblad” branded shop fronts in the ridiculously expensive high street locations are just Cellcom Ltd box-shifting under a different name 
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dii.com suggested I try an ‘offline’ store and sent me this link:
DJI Retail Stores – Locate DJI Stores Near You Today - DJI United Kingdom
As you say the Hasselblad branded shops are resellers, but dji.com pushed me in that direction. I will try one in a week or two…