Mercury – Water Temperature Gauge C–H (120–240°F) | Cooling System Monitoring | White Face | Brushed Bezel | 79-8M6020070Mercury Water Temperature Gauge CH (120240F) Cooling System Monitoring White Face Brushed Bezel 79 8M6020070 OverviewThis 120240F water temperature gauge gives you a steady read on how warm the engines running without jumping every time the boat moves. The needle has a slow, predictable sweep, so even small changes are easy to catch with a quick look. Out on the water, it reacts the way you expectwhether youre trimming up, running through chop, or