What type of communication cable should I use? Brandon Lackey September 02, 2015 15:41 Updated Follow You should use PE-39 Communication Cable for the flow sensor according to the specifications below. Related articles SmartLine Overview and Programming Webinar How do I install a flow sensor? Flow Troubleshooting instructions Mobile App Activations Is there a WiFi option for SmartLink? Comments 0 comments Please sign in to leave a comment.