From High Banked Ovals To Saturday Night 1/4 Miles, Knowing That Youve Got Proper Cooling System Pressure Is Critical In Any Severe Service Application. Autometers Digital Stepper Motor Water Pressure Gauge Utilizes The Most Advanced Technology On The Market To Deliver Accuracy And Durability You Wont Find Anywhere Else. Our Advanced 1/8" Npt Solid State Pressure Transducer (Included) Provides The Best Possible Measurements With Unparalleled Resistance To Vibration And Heat. A Direct Plug In Wiring Harness Is Also Included For Ease Of Installation.