Thermal gas flow sensor FS7 in positioning housing

Flow range from 0 to 100 m/s, -20 °C to +150 °C, easy orientation in a flow channel

For measuring flow rates using a symmetrical heater design and having an excellent sensitivity and reproducibility. It has a plastic housing for fast mounting into a flow channel 


Product Name
Measured medium
Gas Flow
Flow direction
One direction (anemometric)
Operating temperature range
-20 °C to +150 °C
Housing material
Plastic housing
Chip size/dimensions
6.9 x 2.4 x 0.20 mm
Connection type
Cu/Ag stranded wire, PTFE-insulated
Flow range CTA mode
0/ms to 100 m/s
Response time t63
~200 ms (jump from 0 to 10000 sccm)
Response sensitivity
0.01 m/s
Sensor wire
3 pins, Cu/Ag-stranded wires, AWG30, PTFE-insulated, 195 mm long

Product details

Product description FS7

The IST AG FS7 thermal mass flow sensors are the successors of the FS5 flow sensors and exhibit a symmetrical heater design and enhanced sensitivity. The FS7 flow sensor is applicable in gas and offer excellent long-term stability. The small thermal mass of the FS7 sensor provides a fast response time. Additionally, the standard FS7 sensor is also available with a housing which is easily implemented into various applications.

The IST AG FS7 flow sensors are optimal for measuring gas flow in various flow applications.

Benefits & Characteristics of the FS7 gas flow sensor

  • Easy adaptation in various applications and housings
  • Excellent long-term stability
  • Simple signal processing
  • Simple calibration
  • Stable platinum technology
  • Excellent reproducibility

Customer-specific sensor available upon request.