Review on GIYO Mini Bike Pump with Pressure Gauge & Repair Kit - Portable Compact Bicycle Pump for Road, Mountain & BMX Cycling - Presta & Schrader Compatible - 120 PSI by Jonathan Davenport

I have a habit of checking my tires before every ride. I have a bike with Presto and one with Schrader. The pump works fine on both. I had no problems. I check the pressure gauge by looking at the portable pressure gauges I have. I can't tell if it's accurate, but it agrees with my other sensors. I'm writing this in September but I bought it in February and no problems. I use it every week even in winter. I would buy this pump again.