M1-10KPSI Crystal M1-10KPSI Digital Pressure Gauge 0-10,000 PSI Range 0.2% accuracy. The m1 digital pressure gauge maintains 0.2% of reading accuracy from -10 to 50°C. Accuracy is not affected by dropping, over-pressure, vibration, temperature, or rapid pressure change. One wide range m1 digital pressure gauge replaces up to five 0.25% mechanical gauges with 0.2% of reading accuracy.