Using flowmeters that have interchangeable direct reading scales for different materials can provide the user with versatility. Aalborg’s ACRX line of acrylic flowmeters are offered with any one of the interchangeable direct reading scales for air, water, Argon, Oxygen, Carbon dioxide, Nitrogen, Helium and Hydrogen. If purchased as a kit, all the direct reading scales are included, except the one for air. Dual scales display flow rates in both metric and Imperial units, and optional scales can be developed for OEM applications. They are configured for inline 0.5-in female NPT connections and a maximum temperature of 54°C. Aalborg Instruments