Proximal single-use gas flow sensor in single packaging for OEM
The single-use SFM3304-D gas flow sensor is designed to be used in close proximity to patients. It accurately monitors both inspiratory and expiratory flows up to ±250slm with a bidirectional measurement and has an integrated heater that prevents condensation, allowing it to function in extremely humid conditions. It is robust and cost-effective and can easily be connected to respiratory breathing tubes due to its medical cones and clip-on electrical connection, while adding minimal dead space (<10mL). The SFM3304-D is an OEM product: it is individually packaged with a customer-specific label, that allows direct end-customer delivery. For a proximal sensor available in catalog distribution, please see the SFM3300-D.
| Gas flow | |||
|---|---|---|---|
| Full scale flow rate -250 - 250 | -250 - 250 | slm | |
| Typical accuracy ±3% m.v. | ±3% m.v. | ||
| Sensor output Air, N2, O2, non-agressive gases and non-condensing | Air, N2, O2, non-agressive gases and non-condensing | ||
| Maximum operating pressure 1.14 | 1.14 | bar | |
| Fluidic connector ports Medical cone (22 mm) | Medical cone (22 mm) |
| Generic | |||
|---|---|---|---|
| Supply voltage 3.15 - 3.45 | 3.15 - 3.45 | V | |
| Interfaces I²C | I²C | ||
| Size (LxWxH) 69.3 x 25.3 x 22 | 69.3 x 25.3 x 22 | mm |

Sensirion's sensor solutions are used in a wide range of applications and markets. Our reliable environmental and flow sensors improve energy efficiency, increase health and ensure safety and comfort.