Specification 

Measure ranges: 300~3200mm
Working temperature: -20~600ºC
Nominal pressure: PN0~10MPa
Quartz tube test pressure: ≤13MPa
Meter material: carbon steel, SS304
Green for liquid, red for air (don’t need electric power supply for the double color display)
Back light is optional: a, light Emitting Diode: electric power supply: 24VDC. b, fluorescent light tube: power supply: 220VAC