MEMS Flow Sensor FR20

  • FR20.png


The FR20 flow sensor is developed for the upgrade of the original F1031V product. It uses the MEMS thermal principle to monitor the flow of the gas medium in the pipeline. This product adopts a low pressure loss design and is widely used in various gas measurement.


* High sensitivity
* Very low starting flow
* High precision
* High measurement repeatability
* Low pressure loss
* Modular Design

Share To:


Ventilator and Anesthesia Machine

The respiratory system is a very important life support system for the human body. The gas flow sensor, which is a key component for monitoring airflow velocity parameters, has been widely used in ventilators and plays an important role. From hospital bed oxygen supply, floor pipeline oxygen supply to oxygen generators, ventilators, anesthesia machines and other medical equipment needs the support of flow sensors.


Didn't Find Your Tarket Application?
Winsen offers tailor-made gas sensor solutions for your industry

Contact us


Specification Product Size

Technical Data Sheet

Model No. FR20
Full scale value (SLM) 150/200/300
Nominal diameter DN20
Output method Linear 0.5V~4.5V(can be customized)
Output impedance 200Ω
Operating Voltage DC5V~14V
Working current ≤10mA
Accuracy ±(2+0.5FS)%
Repeatability 0.50%
Output drift 0.12%/℃
△Pmax ≤200Pa @200SLM
Work pressure ≤200kPa
Operating temperature 0℃~50℃
Storage temperature -20℃~80℃
Measuring medium Dry clean non-corrosive gas
Electrical Interface 2.54mm-5P pin or PH2.0-5P terminal (optional)
Mechanical interface ISO20mm
Calibration method Air calibration (20℃, 101.325kPa)
Pin definition


Free Guide! Learn the Parameter Differences of Similar Sensors

Wondering how to find the most suitable one for you out of so many sensors? Download our free guide to learn the comparison table of technical parameters. 



As a pioneer in gas sensor based solutions with the advanced processes, technologies and products, Winsen offers a wide range of gas sensors:


As a pioneer in gas sensor based solutions with the advanced processes, technologies and products, Winsen offers a wide range of gas sensors:


Professional and Trustworthy

Brand Precipitation

Focus on Sensor Field

115 +

National Patents

International Advanced Technology

300 +

Detection Objects

More Than 300 Kinds

Production Process

Excellence Products 

60 +

Provide 60+ Countries with Solutions

Serve the Global Market

300 +

Cooperate with 300+ well-known Enterprises

More Customer’s Choice

How to choose the right sensor for your project?

We have 17 sensor series, 200+ categories, and 300+ detection objects for gas detection. Such as CO, CO2, VOC, PM2.5, CH4, LPG and so on. In particular, we also have MEMS sensors. According to your industry application, gas principle, power consumption, accuracy, and range requirements, and we can select a specific model for you. You can also use the product filter below to choose a suitable product, or choose online serivce.

Still need help? Join the community


Here you can learn about the selection guide, common technical problems, packaging, transportation, MOQ, delivery time, etc.

How is your packaging condition?

Standard international package with inner box and outer carton.

What is your delivery term?

Mainly by international express, such as FedEx, DHL, UPS or other forms of delivery.

What is your pre-sales service?

We can recommend sensors based on the target gas and the industrial application to help you quickly select the most suitable one. Sensor Module is also available to save your design time and cost.

Send your inquiry today

Security verification
Submit now!
Security verification

We will send the manual to your email.

Please leave your email address.