Ballade Sports ECT Analog to Digital Signal Converter does exactly such as that.
This module is designed to operate the Temperature gauge in the S2000 cluster when the cluster is installed into any car (AE86, Civic, S2000 etc). It converts the ECT (Water Temp) analog signal coming from the ECU (ie: Hondata Kpro) of your car / engine to a digital signal for a gauge cluster like the Honda S2000 cluster which has a digital read out for water temp gauge.
Why would you need this? Engine K Swapping into a S2000 or Retrofitting a S2000 Speedo Cluster into another car like (Civic, Integra, AE86 Corolla) you will need this to make the water temp gauge on the S2000 Speedo Cluster to work.
Wiring Legend:
PCB -Brown wire a10 pin k sensor ground tap connection
PCB -Orange wire b8 pin k engine coolant temp sensor tap connection
PCB -Red wire e9 pin k 12volt + tap connection
PCB -Black wire a4 pin k ground tap connection
PCB -Green wire a1 pin to S2000 coolant temp to cluster
