Mercury - MercMonitor SmartCraft Display No NMEA 2000 79-8M0119406. Overview. The Mercury MercMonitor (79-8M0119406) delivers full SmartCraft engine data without the added NMEA 2000 gateway or SmartTow features. It's built around software version 4.602, which includes all standard SmartCraft functionality plus the Eco Screen for fuel efficiency monitoring.. This version is perfect for boaters who want the full SmartCraft experience - live RPM, speed, fuel flow, trim, depth, and fault text - with