F660 & F662

High Performance Board-Mount Digital Airflow Sensor (Tall Profile)

The F660/F662 is the smallest form factor, digital airflow sensor available on the market today. Designed to measure air velocity inside electronic or ducted systems, the F660/F662 uses high performance dual element sensing technology and can be soldered directly to a printed circuit board, or plugged into a surface-mount socket for easy removal or maintenance. The F660/F662 can be calibrated for flow velocities of 0.15 - 20 m/s (30-4000 fpm), with accuracy up to 5% of reading and operates from -5 to +60C.  (The sensor will not be damaged if operating within the wider storage temperature range.)

The F660/F662 sensor uses the smallest possible sensor footprint, (7mm x 10mm), thereby providing maximum positioning flexibility for the client. The sensor is powered by local 5-24VDC and communicates across the existing I2C or UART bus, or can be configured with an alarm output, for switch-style operation. Using I2C, up to 32 sensors can be addressed for applications where multipoint measurement is needed. 

The F660/F662 is RoHS compliant, and uses dual sensing elements to measure air velocity and air temperature in real time.For increased acuracy, a flow learning command can be used, transmitted over I2C, to allow for local calibration of the sensor after install by the board manufacturer.








  • Smallest footprint air velocity sensor available

  • Dual sensing element with protective shroud

  • Fully linearized air velocity and air temperature with wide operating range

  • Less than 20mA power consumption

  • Up to 5% Accuracy

  • Addressing for up to 32 sensors on an I2C bus

  • Alarm output option available for switch style operation

  • Available flow learning command for product optimization, post-soldering

  • RoHS compliant
  • For high volume customers looking for a low profile head with sensor electronics built directly onto their PCBA as a reference deign, the RFS300 uses the smallest footprint possible for an air velocity sensor.

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Applications By Industry

  • food service
    • Thermal load cards

    • Thermal Development & Test Boards

    • Embedded Computing Boards

    food service app 150x250
  • laboratory & research
    • High-precision ducted flow applications for incubation or culture growth

    • Embedded computing boards
    • Medical electronics

    lab app 150x250
  • data center
    • Server boards

    • Thermal load cards

    • Controller cards

    • Thermal development and test boards

    data center app 150x250
  • information technology
    • Server boards

    • High lumen projector applications  

    • Thermal load cards

    • Thermal development and test boards

    it app 150x250
  • Telecommunications
    • Telecom communication and management cards

    • Server boards

    • Thermal load cards

    • Embedded computing boards

    telecom app 150x250
  • hvac
    • HVAC controller cards

    • Heat recovery ventilators

    • High-precision ducted flow applications for incubation or culture growth

    hvac induct app 150x250





pdf button F660/F662 Data Sheet

pdf button Board Mount Sensor Product Manual