Asair AFM3020 Mass Flow Sensor - I2C Interface
The Asair AFM3020 is a digital thermal mass flow sensor designed for ventilator and respiratory applications, compatible with 5V systems and featuring a direct I2C interface for easy integration with microcontrollers like Arduino, Raspberry Pi, and ESP32.
Features
- Measures air, oxygen, and non-aggressive gas flow from ~10 to 200 SLM (standard liters per minute).
- High accuracy of ±2.5% with internal temperature compensation and 24-bit ADC for stable readings.
- Digital I2C interface provides calibrated, high-resolution output with a fast 10ms sampling time.
- Low-pressure drop flow channel design minimizes system backpressure for demanding medical applications.
- Robust construction offers high resistance to shock and vibration for reliable operation in harsh environments.
Out of stock
The AFM3020 mass flow sensor utilizes Aosong’s advanced thermal sensing technology, combining a MEMS thermal sensor chip with a high-performance integrated 24-bit ADC and CMOS microprocessor. This design enables precise measurement of gas mass flow by detecting the heat transfer caused by the moving fluid, resulting in fast signal processing and superior accuracy compared to conventional methods.
Operating from a 4.75V to 5.25V DC supply, the sensor outputs fully calibrated and temperature-compensated digital data via I2C, eliminating the need for external signal conditioning. Its specialized flow channel geometry ensures minimal pressure loss, making it extremely suitable for sensitive applications such as medical ventilators, respiratory equipment, and industrial gas mixing systems where system integrity is critical.
Additional Information
| Weight | 0.02 kg |
|---|---|
| Dimensions | 10 × 12 × 2 cm |
