I have a Merc 90hp 2 stroke 2002, I am not comfortable with just the over heat alarm. Is there any way to and either a water pressure gauge or a Temp Gauge? My concern is if you lose cooling water, why does the alarm go off? After the motor over heats. I would like a little advance warning. What made me think of this, is when I went to pulled my boat for the season last year, I had no water coming out of the pee hole, The pee hole was clogged and I was 600 yards from the ramp, had I been out on the river it could have been more of a problem.