AP01 0-150psi Digital Oil Pressure Gauge w/ LED Interface For 's 30-4407 X-Series Digital oil pressure gauge designed for use with 's 30-4407 X-Series.Suitable for carbureted or fuel-injected vehicles.Includes a plug and play harness and for straightforward installation.Features 24 green LED display lights that provide real-time visual feedback on engine oil pressure, with a sweeping LED indicator along the gauge perimeter that responds to pressure changes from 0 to 150 psi.Central three-digit readout displays pressure in 1 psi increments.ambient light sensing photocell automatically adjusts the brightness of the gauge face and display.Includes 0-5V analog output for compatibility with data loggers and most engine management systems.Standard 52mm (2-1/16”) housing size.Comes with interchangeable black and silver bezels as well as black and white faceplates for customizable appearance. Compatibility Disclaimer: This is an aftermarket replacement part.Any brand names or model designations mentioned are used solely for the purpose of demonstrating compatibility.