King meter display just one compatibility with controller

[Kruger]

Here is my question especially for @kongrui1984 and as well for community.please help me with a compatible controller which works with king meter just one display.the old one which need replacement is a Linshui controller from 2017.please any help?!
I attached the pictures with controller and display serials.

 

[kongrui1984]

Hi Kruger, thank you for reaching out, all the controller need share the same comunication protocol with display, KT is a unique system that they using their own protocol, so you can only use KT display to fitt the KT controllwe.
For your case, what I can check for you is your display is using a "J-protocol" with controller, so you need to find a also "J-protocol" using controller to work together. but unfortunately the controller do not show what protocol thay are using to the tags(I think the sellers do not know either). so I think you can contact Lishui for one sample , or just buy a KT display to play with KT controller. hope it will helps you.