HPC Controllers with date codes of JAN 2023 and newer include two sensor inputs. The SEN-SEN terminals from the original HPC Controllers have been split into SEN and SEN-2 to allow for two separate sensor installations (i.e., flow + rain sensor). Sensors are now wired separately across the common terminal (COM).
NOTE: If the Solar Sync sensor was previously installed, this would have to be removed as it is no longer required. The regular Clik sensor can be added as a simple onsite rain shutoff device in conjunction with the software that allows you to use Predictive Watering Adjustments to achieve accurate water savings.