YW-100B precision digital pressure gauge imported sensor, superior performance, high accuracy, corrosion resistance, impact resistance, anti-vibration, high stability, etc; signal processing circuitry using the latest ultra-low-power processors,signal processing and power management chip chips, using a large capacity,high performance lithium battery-powered, no external power supply. percentage using the digital display and analog display, intuitive readings, the product precision can reach 0.05 for ordinary pressure gauge, precision pressure gauge and pressure transmitter calibration and test, instead of themore traditional mechanical pointer pressure table-site measuring pressure.