Features a black glass face with digital display that only becomes visible once the ignition has been turned on.

Gauge Diameter = 52mm

Example of how the "Amber Series" functions

Upon starting your vehicle the display initially shows you a vehicle voltage reading. After approximately 50 seconds the display switches over to display the coolant temperature. If the coolant temperature is less than 40°C or higher than 98°C for more than 3 seconds the gauge will begin to flash. In 10 minute intervals the display reverts back to show you a vehicle voltage rating that is displayed for 50 seconds before the coolant temperature is once again shown. During the 50 seconds that the voltage # is displayed you are still able to monitor the coolant temperature by viewing the LED bar display.

Green: 45 > 70°C (6 green LED´s) 
Yellow:  75 > 95°C (5 yellow LED´s) 
Red: 100 > 140°C (9 red LED´s) 

Should the vehicle voltage at any point drop below 11V the display with begin to flash with a red warning light and the current voltage will be shown. The voltage display mode will remain until the problem has been corrected.