SFA30
Formaldehyde sensor with ultra low cross-sensitivity to ethanol
<p><span style="background-color:rgb(255,255,255);color:rgb(0,0,0);">The SFA30 is a digital formaldehyde sensor designed for easy integration into air purifiers, demand-controlled ventilation systems, or indoor air quality monitors.</span><br><br><span style="background-color:rgb(255,255,255);color:rgb(0,0,0);">Based on the electrochemical measurement principle, the SFA30 offers excellent performance with a uniquely low cross-sensitivity to other VOCs. The integrated humidity and temperature sensor provides accurate readings and enables a fully temperature/humidity compensated and factory calibrated formaldehyde concentration output in ppb. Selectable digital UART and I²C interface options, a standard electrical connector, and versatile mounting options make the integration easy. Relying on our experience in environmental sensing and a patented electrochemical cell with anti-dry technology, the SFA30 offers excellent long-term stability and 6 years service lifetime. </span>On top of that, the SFA30 is compliant with the relevant healthy building standards RESET® and WELL Building Standard™.</p><p> </p><p>Download our free article on formaldehyde <a href="https://sensirion.com/forms/article-formaldehyde-form"><strong><u>here</u></strong></a>.</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, RH, T
| Formaldehyde concentration in ppb, RH, T | ||
| Cross sensitivity to ethanol
< 0.5
| < 0.5 | % | |
| Limit of detection
< 20
| < 20 | ppb | |
| Lifetime
> 6
| > 6 | years |
| Humidity | |||
|---|---|---|---|
| Typ. relative humidity accuracy
2.5
| 2.5 | %RH | |
| Operating relative humidity range
10 - 90
| 10 - 90 | %RH |
| Generic | |||
|---|---|---|---|
| Supply voltage
3.15 - 5.5
| 3.15 - 5.5 | V | |
| Average supply current
1000
| 1000 | uA | |
| Max. supply current
5000
| 5000 | uA | |
| Operating temperature range [°C]
0 - 40
| 0 - 40 | °C | |
| Interfaces
I²C, UART
| I²C,UART | ||
| Size (LxWxH)
46 x 24 x 5.5
| 46 x 24 x 5.5 | mm³ |
| Temperature | |||
|---|---|---|---|
| Typ. temperature accuracy
0.2
| 0.2 | °C |
Downloads
Sensor evaluation
Buy the following products to evaluate this sensor
| Name | Description | Series | Category |
|---|---|---|---|
 SEK-SFA30 | Formaldehyde evaluation kit SFA30 | SEK-SFAxx | Formaldehyde |
Download the respective viewer software to start measuring
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