"Idiot light" vs. Oil Pressure Gauge

Bewy said

I have an oil pressure gauge [ standard in my car ] & I added an idiot light sender. A $2 buzzer is connected to the sender as an immediate, audible alarm. As AJ says, you cannot always be looking at your gauges.

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If you need to monitor your gauges so much you need a warning light and a buzzer maybe there are other issues.

It’s not that hard to get a look at the gauges every 5 minutes. If I have to look more than that something else wrong.

I look in my mirrors more than that.