Using k8095 as doorbell with 6 metre cable?

I’ve built the K8095 , and it works well, I want to use it as a doorbell, I’ve used a shielded four core cable to the doorbell, and run the wire from the switch ‘E’ , but i still get random or no results when I push the button, any ideas on what I could do to reject noise on the wire get a better response and avoid ‘false positives’ ? Is there a better button to route to the doorbell ?

Thanks in advance !
Kind regards,

It is better to put a relay close to the K8095 and operate the relay via the 6m cable and button.