Review on 🔧 FOVAL Digital Tire Pressure Gauge 150 PSI: Instant Read with Backlit LCD and Non-Slip Grip (4 Pack) - Car Truck Bicycle Tool by Josh Maher

I checked all four and they were within 0.1 of each other. They read 36.5psi and the gauge on my dash was 37. I'm not sure which is closest to the right one, but they seem close enough to fine-tune my tires. everyone was pretty close too. All 5 were 38psi, so the readings were the same too.