Engine Sensors

I m trying to repair my engine alarm system. Can anyone tell me where I might find pressure and tempurature switches. Aqualarm has some but they limit you to 10 psi on the oil pressure switch. I would liek the alarm to sound at 20 psi.

[graham]

are you still looking for info????
give an email address??

[gonzo]

Try Murphy gages. They are expensive but allow you to set the temperature and pressure when the alarm goes off.