AEM Digital Oil Pressure Gauges combine unsurpassed accuracy, speed and control with an easy-to-read digital LED interface that displays oil pressure in 1 PSI increments, and a sweeping LED "needle" that lines the edge and moves as oil pressure changes from 0 to 150. The oil pressure gauge's digital readout will automatically increase and decrease in intensity due to the built in ambient light sensing photocell.\nAEM's digital oil pressure gauges include a 0-5v analog output for use with data loggers and virtually any engine management system, such as the Infinity ECU, Series 2 EMS or AQ-1 Data Logger, making them the perfect solution for users who need to monitor and data log oil pressure at high RPM on tuned engines.