Review on 🚲 CycloSpirit Universal Bicycle Tire Inflator Gauge: Auto-Select Valve Type - Presta and Schrader Air Compressor Tool by Bruce Garner

Some reviewers say it doesn't match the valve, others say you just have to push harder. I'm in the first camp. I need to inflate tires with two things: on my bike with Presta valves and on my car with Schrader valves. I couldn't get it to work either. I could get it working with a Schrader adapter on my bike, but that defeats the purpose of the auto select feature. It seemed to me that the valve stem on my car was too short to fully inflate it. It just didn't work for me.