I don't know how you could non-invasively monitor oil pressure but for coolant temperature you could stick a thermocouple down it simply.Hello,
I have a 1968 Ford F-250 and I’m looking for a clean, modern way to monitor engine data without adding traditional analog gauges to the dash.
Specifically, I’m interested in a Bluetooth-based gauge or sensor module that could monitor things like oil pressure, coolant temperature, and RPM, and display that information on a smartphone instead of physical gauges.
Because this is a classic truck, my goal is to keep the original factory gauges intact and untouched, while adding modern monitoring that runs quietly in the background and shows data on my phone. basically using standard sensors and t-couplings into a board could use some help.
Any guidance or recommendations would be greatly appreciated. can you help?
Thank you for your time.
Best regards,
Jeff
does your truck have a factory rpm gauge ? exact engine model ?
Statistics: Posted by wcl55 — Fri Jan 30, 2026 8:34 am