I bought a brand new SmartGauge D2 from Amazon, and compared its reading to my other pressure gauges around the house. I have two digital gauges (marketed for car tires) and two JoeBlow floor pumps with built-in analog gauges. Three of these four gauges agree with each other within a PSI or so; the fourth (the analog gauge on the more beat-up floor pump) reads a little low.
The SmartGauge D2 consistently reads about 10% lower than my three gauges which agree. 27 instead of 30 PSI, 28 instead of 31. This discrepancy holds no matter which order I use the gauges in. It doesn't matter whether I'm measuring bike or car tires.
Thinking I probably got a bad unit, I exchanged it for a new one. The replacement gauge came today, it does the exact same thing, and I don't know what to believe.
Folks out there who have the SmartGauge D2 and another gauge, can you please compare them and share your result? Thank you
(I don't need replies just to tell me that I can find the pressure that "feels right" and the exact number on the gauge doesn't matter. I'm a nerd, I want to measure pressure accurately.)
The SmartGauge D2 consistently reads about 10% lower than my three gauges which agree. 27 instead of 30 PSI, 28 instead of 31. This discrepancy holds no matter which order I use the gauges in. It doesn't matter whether I'm measuring bike or car tires.
Thinking I probably got a bad unit, I exchanged it for a new one. The replacement gauge came today, it does the exact same thing, and I don't know what to believe.
Folks out there who have the SmartGauge D2 and another gauge, can you please compare them and share your result? Thank you
(I don't need replies just to tell me that I can find the pressure that "feels right" and the exact number on the gauge doesn't matter. I'm a nerd, I want to measure pressure accurately.)
