The CDS-11 is a direct plug-in replacement for the Italian CNG switch .It comes with a one-year replacement warranty and provide the user with the following advantages that are not currently provided by any switch in the market.Two Digit numerical display that shows the CNG Gas pressure in the Tank. The display shows a Maximum level of 99. Normal value on Tank full is less then 80. The Driver knows exactly how far he can go with the digital Display. No need to rush to the filling station on seeing the last Green LED. The RED (CNG Low) LED Switches ON when the level is less then 20. The Driver Knows which CNG Station has the maximum pressure level.