AutoTrim Pro Sensor KitThis kit adds tab position indication functionality to classic hydraulic systems currently without indication capabilities. AutoTrim Pro (ATP) requires the presence of actuator sensor wires in order to display trim tab position indication LEDs (although all other ATP features will function without sensors).WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.This product may not be returned to the original point of purchase. Please contact the manufacturer directly with any issues or concerns.