Stainless Steel 1/8 NPT Pressure MAP/PSI/BAR Sensor For Fuel Coolant Oil Air
ProTunerz Stainless Steel Pressure Transducer Sensor . Works on 5v REF and outputs a signal from 0-5v. These are waterproof can be used for air/liquid. As a boost/MAP sensor, FUEL/Coolant/Oil Sensor. Very CRITICAL when tuning an engine can be set as a fuel/pressure cut off, kick off another relay (2nd pump etc) at desired pressure and much more. Same kit as Haltech/AEM/Holley But a fraction of the price.