CTs 200A or higher with larger aperture

There is any way to buy and install a CT we could buy with larger aperture then the existing 200A ones in store?

I try with a flukso CT (500A and 200A) i got a few years ago and when i connect them to the port 01 in emonpi i get readings in all ports (01-06).

So im looking for some CT that does not give me this problems

Welcome, Genera, to the OEM forum.

What are you connecting your c.t. into? If it is an emonTx4 or emonPi2 with 0.333 V inputs, you should be able to use any c.t. that has a 0.333 V (333 mV) output. To read the correct current, you must change the calibration to 500 or 200, or if you set the calibration to 100, the value your emonTx4 or emonPi2 reads, and which you see in emonCMS, will be the percentage of the c.t’s rated current (and you can then multiply by 5 or 2 on the Inputs page).

If it is any other emonTx or an emonPi1, then say exactly what your c.t. is.