... gas pressure sensor inside, the gauge sends pressure signal to fuel changeover switch, so that the driver get to know the ... , your customized size4. Measurement range: 0~400bar, 0~6,000psi (dual scale)5. Coupling: Bottom or back connection6. Thread Coupling: M20x1 ... :2008, Certificate of Utility Model Patent11. Dial plate: Single or dual scale (psi, kpa, mpa, bar, kg/cm) available12. Measuring medium ...