PPM monitor in EU - anyone know where to get one, that can reach 10.000 PPM?

[MaJo!]

Hi there

So, I am doing the last preparations for my ending.

I know that with gas (co) you will go out within a few minutes if the level reaches +10.000 PPM.

But I cant find anywhere to buy a device that can show more then 1000/2000. (And at this level nothing is sure).

Does anyone know where to find a meter, that can measure around 10.000 PPM - and preferable a company within the EU.

Thanks.