Black Display Daytime / White Display Daytime / Black or White Display Nighttime- Striking Opening Mode.- During the opening mode, wire disconnections, short circuits, and serial errors are checked automatically. When errors are found, LEDs light up in order. - A bright transparent green gauge dial and a red instrument needle pointer are used to increase visibility at night and in low-light conditions.- A regular Position Bezel is attached to 2 1/16" gauges. The bezel enables users to find subtle changes in car by setting the position of the red triangle depending on the driving situation. - Driving data can be stored and can be replayed up to 3 minutes - Double Warning function by a meter's LED lamp and a beep - If Defi-Link Indicator(sold separately) is connected, it blinks when any of connected meters' warning LED lights. - Defi-Link Indicator can be connected with each meter. - Differential pressure between fuel pressure and turbo can be shown if both of fuel pressure meter and turbo meter are installed - Defi-Link Control Unit II or Defi-Link Control Unit is necessary to operate Defi-Link Meter. - Defi-Link Meters are applicable to 12V vehicles only. Defi-Link Meters need to be connected to Defi-Link Control Unit II. Up to 7 gauges can be connected and controlled by one Control Unit II. The name of the connection system is "Defi-Link System." Defi-Link System allows gauges to be attached to Defi-Link Control Unit II with a single "DAISY CHAIN" wiring system.