Optiflow 420It is the best soap film flowmeter for measuring low flow rate gases, especially for GC chromatography columns

• Flow range -0.1 to 50 ml/min
Accuracy+/-3%

Optiflow 570

• Flow range -5.0 to 700 ml/min
Hard portable case for on-site use (only for Optiflow 570)

• Measurement of diversion ratio

Accuracy+/-3%

Optiflow 650

• Flow range -5.0 to 5000 ml/min
Accuracy+/-2%

Hard portable case for on-site use
Can measure both positive and negative flow rates (vacuum) of the gas source

Ordering information: