The versatile PD Digital Pressure Gauge can be used with any gas,liquid,or solid that is compatible with 17‑4 stainless steel.The one‑piece construction employs no silicone oil,welds,O‑rings,or seals, making it the ideal universal pressure measurement device.The large LCD display shows the current reading,the selected scale,and the maximum and minimum pressure.All functions are easily controlled from the four panel push buttons located below the display.