Marine quality CruzPro OP30r digital oil pressure gauge and alarm $110RRP
Electronic display and wiring from the source, no oil lines required. Comes with a oil pressure sender $190RRP!
The gauge will read up to 400psi and the equivilent in BAR, displays either with the flick of a button.
Low and high pressure alarms. 85 dB alarm will sound and the display will flash.
It has built-in calibration curves for most popular pressure senders manufactured by VDO, Teleflex, Faria and others (sender not provided). The sender type is easily selected with the front panel keys. Currently configured for the sender provided.
Data is output on an NMEA 0183 compatible serial data output for logging.
I previously had this installed to monitor the pressure in the lines of my modified auto-box, but the car is now manual. It can easily be set up to read engine oil pressure.
$250 - comes with instructions, some wiring, sender