Innovate Motorsports 3853 MTX Digital Series Dual Function Water Temperature and Battery Voltage Gauge Kit Water temperature, display in either degree Fahrenheit or degree Celsius, water temperature warning (seven-segment) The 2-1/16 inches (52 millimeter) gauge features a water resistant casing Interchangeable faceplates and bezels, locking connectors for simplified installation Battery voltage, program exterior LED ranges vs. color, program voltage warning (outer LEDs)