Originally Posted by JBinKC
Friends: I bought the Warn SPC and it's a good compressor -- quiet, powerful and convenient. I can easily reach the trailer tires from the trailer battery, allowing me to adjust tire pressures when the tires are stone cold. The tire gauge included is not impressive and it's 5 pounds off from my Accu-Gage tire pressure gauge. So how do you get tire pressure gauges calibrated? Do serious tire dealers have accurate gauges to use as a standard? Best wishes, John
I also purchased the WARN SPC. I have not used it to inflate the trailer tires yet. I was surprised that the best price I found was the WARN website.
I had not thought of trying to use the trailer batteries.
I was going to use the truck batteries with jumper cables as an extension if necessary. (sort of Rube Goldberg)
. My trailer batteries are such a tight squeeze in the compartments, that I am sure I could not reach the negative post without pulling the battery out onto the door. . Since our trailers are the same model (different years), I am wondering how you handle that problem if your battery setup is the same.
I have a Accu-Gage EZ-air with a round digital gage. I also have a Brookstone guage with the same type of round digital guage. I am guessing that the Brookstone guage was made by Accu-gage because of their similar construction They both always agree within a fraction of a pound.
I also have a HawksHead TMPS, that all sensors are in agreement with the gauges within a fraction of a pound. HawksHead says they have very accurate equipment that they calibrate each sensor with.
Maybe I lucked out and coincidentally everything is wrong by the same amount.