This is the optional SmartLink™ Communications 3-Way Adapter Cable.
Use it for connecting the your MC-618 Regulator to your SG200 Battery Monitor via your SmartLink network.
This allows you to remotely program the basic (but not advanced) settings for your MC-618 regulator from your SG200 Battery Monitor display rather than using the reed switches on the regulator.
(With the addition of the SG2-300 Bluetooth Gateway/Router to your SamrtLink network you can remotely program the advanced regulator settings via the Balmar App.)
Note – Connecting the MC-618 to SmartLink also requires either the SG2-0400 (10 meter) or SG2-0403 (5 meter) Communications Cable.
This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm.
www.P65Warnings.ca.gov