Review on Tru Flate 17 551 3 60 Dial Gauge by Rafael Lewis

I bought this tire gauge because Tru-Flat is an old brand that makes very good solid tire gauges. The seller quickly sent me a new product for free. Good deal, right? When I compared it to 3 other gauges and one of the $200 gauges at my local tire shop, when tested they all showed the same reading, this one was 4psi above normal. Subtract 4psi from each reading to get the correct reading and it could be different at a lower or higher psi due to the pressure on the dial. When we tested two of them, none worked properly.