The intelligent alternative for VA meters, rotameters or purgemeters:
thermal Mass Flow Regulators for gases with OLED display

The MASS-VIEW^® series operate on the principle of direct thermal mass flow measurement. A major advantage of using this type of sensor is that the instruments measure direct mass flow, without the need of temperature and pressure correction. The MASS-VIEW^® has compared to conventional meters high accuracy and rangeability (up to 1:100). Available full scale ranges are 0.2 up to 200 l_n/min (or SLM) relative Air (SLM equals l_n/min at 0°C and 1 atm)  For your convenience, we also have our flow ranges in other flow units.

We also offer dedicated regulators for Hydrogen (H2) or Helium (He)
(see our models MV-394-H2/He, MV-396-H2/He).
Available full scale ranges are 1 up to 100 l_n/min (or SLM)  H2/He.