DIYBMS with higher voltage reference precision (AZ432 offers)

Hello all,

I would like a higher precision of the voltage measurment than the AZ432ANTR-E1 offers.

I think that I have read an older post where in the past a different voltage reference (also 0,5%) had been used and that from that part a high precision version (up to 0,1%) was avaliable and a possible replacment.
But Stuart changed then to the AZ432 due to the lower price.

I dont count on the price I like a very accurate voltage Measurment. Unfortunatly I can’t find this post.

Who can help me?
Greetings from Austria