Defi-Link Control Unit II is a necessary controller to install Defi-Link Meters, Defi-Link Meter BFs, and Defi-Link Displays. Up to 7 gauges and displays 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 and displays to be attached to Defi-Link Control Unit II with a single "DAISY CHAIN" wiring system. Driving data can be stored and can be replayed up to 3 minutes. Pause, speed play, forward, and rewind function can be applied during playback. Double Warning function by a meter's LED lamp and a beep. The switch panel is embossed and buzzer sounds by pushing the buttons. The characters and the rings on the switch panel are illuminated in white at nighttime. It makes operation in the dark easy. Differential pressure between fuel pressure and turbo can be shown if both of fuel pressure meter and turbo meter are installed.