Review on 🚴 JACO BikePro Tire Pressure Gauge - 160 PSI (Road Bike & BMX Series), Presta & Schrader Air Chucks by Shedrick Roach

This is a quality product. It appears to be well made and sturdy. I made an informal comparison of 3 pressure gauges on 8 car tires and measured the pressure before and after adjustment. Of the three gauges, this consistently recorded the highest pressure, about 0.5 psi above average (28-38 psi pressure range). The accuracy was high and the measurements reproducible. However, the significant numbers change in the relative pressure range. The gauge is accurate to 1psi, but you can laboriously extrapolate to 0.5psi if you focus and correct for parallax. So you can see that 17+/-1 psi in a mountain bike tire is less accurate than 130+/-1 in a road tire, which is why I'm only rating this sensor 4 stars. Ideally, I would like to have two print areas to choose from.