SFA40
Upcoming Available early 2025Miniature, low power consumption formaldehyde sensor for indoor air quality applications
<p style="text-align:justify;">SFA40 builds on the market success of its predecessor, SFA30, offering ultra-high selectivity to formaldehyde and long lifetime. It features unprecedented low power consumption and top performance – all in a miniature form factor. Engineered in Switzerland, it is designed for easy integration into air purifiers, indoor air quality monitors and air conditioners. All SFA40 sensors feature a digital I<sup>2</sup>C interface and are calibrated for accuracy at our manufacturing facility in Switzerland.</p>
Specification
| Formaldehyde | |||
|---|---|---|---|
| Measurement range
0 - 1000
| 0 - 1000 | ppb | |
| Accuracy
±20 ppb or ±20% m.v.
| ±20 ppb or ±20% m.v. | ||
| Sensor output
Formaldehyde concentration in ppb
| Formaldehyde concentration in ppb | ||
| Cross sensitivity to ethanol
< 0.3
| < 0.3 | % |
| Generic | |||
|---|---|---|---|
| Supply voltage
1.62 - 3.6
| 1.62 - 3.6 | V | |
| Average supply current
80
| 80 | uA | |
| Max. supply current
2
| 2 | mA | |
| Interfaces
I²C
| I²C | ||
| Size (LxWxH)
13 x 10 x 2.4
| 13 x 10 x 2.4 | mm³ |
Smart sensors for your application
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.