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Volume flow transmitter 679
-1 ... 1 mbar / 0 ... 0.3 – 50 mbar

The volume flow transmitter type 679 have Bi-direction  pressure ranges. Variable measurement of pressure, flow or velocity of flow is available. Special sensors developed for each pressure range guarantee a physically precise and long term stable measurement. The diversity of versions ensure the use in many  various applications in HVAC or for fine measurement in the industry or medical sector.

Offer request

Air and neutral gases

Pressure range

-1 ... 1 mbar / 0 ... 0.3 – 50 mbar


0 ... 10 V, 0 ... 20 mA, 4 ... 20 mA


< 0.5% fs

Electrical connection

Screw terminals

Pressure connection

Hose connector Ø 6.2 mm

Screw mounting
With LCD-Display
Adjustable measurement range
Switchable output signals
Full scale adjustable
Adjustable k-Factor for flow and velocity
Fast, easy mounting. Housing incorporates integral bracket for wall or ceiling mounting
Application at over and low pressure range possible
Resettable Zero Point (Reset button)


Connection kit for vent duct (plastic)
Connection kit for vent duct (metal)
DIN-rail mounting adapter
Calibration certificate