It fits perfectly although you may have to trim the long bolt as it can catch the coal basket, I didn't I used the bottom hole on the daisy wheel and it supports the basket. What I would advise though is to clean the other vents very well before sealing them with the supplied tape. I'd also get some more tape as you don't get very much

. The probes on mine fitted the grommets perfectly but I know some people have either opened the holes up or "GENTLY squeezed the probe where it joins the wire to reduce it's thickness. Oh yes and don't lose the black cap it's the only way to shut the smoker down, rather than let it burn out. Noe If Eddie from Invicta picks this up he probably still has a link to building a see-through waterproof box. If not search youtube for the IQ and you'll eventually find the link.
It's a great bit of kit
Enjoy
Keith