Mercury - SmartCraft SC1000 System Monitor Round White Face 85 mm 79-892219K20. Overview. The Mercury SmartCraft SC1000 System Monitor (79-892219K20) is your all-in-one display for tracking essential engine data and performance. Designed for front-mount installation, this round SmartCraft monitor fits a standard 85 mm (3-3/8") dash opening and comes with a white bezel to match modern white-face helm layouts.. It delivers alarms for key systems such as battery voltage, oil pressure, and water pre