NG # 09440013-HW-SENS-013
SFM4300-20-B is a pressure-resistant, high-precision mass flow sensor designed for multi-gas measurement and mixing applications. It measures flow rates from 0 to 20 standard liters per minute (slm) and supports air, oxygen, carbon dioxide, nitrous oxide, and their mixtures. Featuring an I²C interface, temperature-compensated output, and compact basemount design, it is suitable for medical and industrial gas flow monitoring.
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Get A QuoteThe Sensirion SFM4300-20-B combines accurate mass flow measurement with pressure resistance and reliable performance at low flow rates. It offers a typical accuracy of ±2% of measured value, supports operating pressures up to 7 bar, and operates on a 3–5.5 V supply. The sensor provides calibrated flow and temperature outputs through an I²C digital interface. Its compact design and multi-gas calibration make it ideal for anesthesia equipment, medical gas mixing, industrial gas systems, and fuel cell applications.
Type: Multi-Gas Mass Flow Sensor
Model: SFM4300-20-B
Measurement Range: 0–20 slm
Typical Accuracy: ±2% of measured value
Calibrated Gases: Air, O₂, N₂O, CO₂ and mixtures thereof
Supply Voltage: 3.0–5.5 V DC
Maximum Supply Current: 10 mA
Communication Interface: I²C
Maximum Operating Pressure: 7 bar
Fluidic Connection: Downmount (Base Mount)
Dimensions (L × W × H): 92.5 × 32 × 29.3 mm
Measurement Principle: Thermal Mass Flow Measurement
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