Configurable Air Velocity Sensor suits embedded applications.

Press Release Summary:

Utilizing constant deltaT architecture, AccuSense F333 measures air velocity from 40-2,000 fpm while maintaining better than ±10% accuracy across 15 to 60°C range with 2% or better repeatability. User-configurable, linear voltage output of 0-5 or 0-10 V facilitates integration, while UART or I²C interface enables specific memory location access. Offering dedicated open drain alarm pin, RoHS-compliant sensor is aimed at ducting applications, fume hoods, and biological safety cabinets.

Original Press Release:

AccuSense F333 Low Cost, Configurable Air Velocity Sensor for Embedded Applications

Degree Controls, Inc. of Milford, New Hampshire, is pleased to announce the availability of the AccuSense F333 air velocity sensor for embedded applications.

Utilizing state-of-the-art constant deltaT architecture, the AccuSense F333 is a series of low cost airflow sensors designed for field systems. Manufactured with RoHS compliant, rugged construction, the AccuSense F333 is a compact sensor aimed at ducting applications, fume hoods, and biological safety cabinets. Additional applications include industrial process equipment and packaged electronics such as data communications chassis and rack equipment.

The AccuSense F333 provides air velocity measurements within the range of 0.2 m/s to 10 m/s (40-2000 fpm) while maintaining better than ±10% accuracy across a temperature range of 15°C to 60°C with a 2% or better repeatability of reading. Accuracy is further improved as the user constrains the operating temperature range.

With a user configurable, linear voltage output including 0-5V or 0-10V, the user can easily integrate the sensor into a control system, instrument panel or interface to other equipment management devices. A dedicated open drain alarm pin is available and offers fully configurable temperature-based or velocity-based set points. The AccuSense F333 provides a UART or I2C interface for the user to access specific memory locations for more complex algorithms and equipment implementations.

Sophisticated users leverage the customized outputs, such as PWM, where the signal can be used to directly speed control a DC fan.

AccuSense F333 samples are available for $85 USD each, and volume pricing is available upon request. For complete product specifications, please visit the detailed product page at

Founded in 1996, DegreeC is a minority-owned, ISO-9001 registered company. With more than a decade of experience, DegreeC is a leading provider of thermal management and AccuSense airflow solutions for challenging applications. DegreeC is also engaged in solving thermal management issues for mission critical, room level spaces like data centers and clean rooms. In addition to its USA locations, DegreeC has facilities in India, China and Japan. Additional information about DegreeC can be found at

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