... your customized size4. Measurement range: 0~400bar, 0~6,000psi (dual scale)5. Coupling: Bottom or back connection6. Thread Coupling: M20x1 ... of Utility Model Patent11. Dial plate: Single or dual scale (psi, kpa, mpa, bar, kg/cm) available12. Measuring medium: non-corrosive13. ... or acrylic lens Instructions: When the voltage between 175 bar and 200 bar the green light on switch lighted; when the ...