The oil temperature and oil pressure gauges are new and have never been installed in any car. They come with all the required sensors. I do not know what colour they light up because I have never used them before.
This is taken from an advertisement of the gauges:
Defi-Link Meters are electronic gauges which are high response and refined design.
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 UnitII. 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. Each gauge has two LEDs. One LED illuminates when the gauge pointer exceeds a warning value which is discretionary with the Control Unit II. The other LED illuminates when the gauge pointer exceeds a past maximum value.
FeatureNote
Gorgeous 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.
Full-lineup: boost(for turbocharged and supercharged engines), intake manifold pressure(for natural aspirated engine), oil pressure, water temperature, oil temperature, fuel pressure, exhaust gas temperature and tachometer. White and black gauge
dials are available. A bright transparent green gauge dial and a red instrument needle pointer are used in the gauges to increase visibility at night and in low-light conditions.
The scale of 4 1/2" gauges is compressed to acquire great visibility and ease of use. Wide-angle scale is used at the idling range 0~1,000RPM. The scale is fitted to recent engine power band and linear scale is used from 3,000RPM to 11,000RPM.
NEW Regular Position Bezel is attached to 52mm gauges. The bezel enable user to find a subtle change 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.(Defi-Link Indicator is standard option for 4 1/2" and 3 1/8"
Defi-Link Meters.)
Differential pressure between fuel pressure and turbo can be shown if both of fuel pressure meter and turbo meter are
nstalled.(*3)
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.
Hope that helps.
Jon