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SGP30 SGP40 SGP41 gas sensor TVOC eCO2 carbon dioxide measurement formaldehyde module
Quick answer
Is $7.75 a good price for SGP30 SGP40 SGP41 gas sensor TVOC eCO2 carbon dioxide measurement…?
Too early to tell: DipScout has tracked this price for 1 day, and comparing it with a typical price takes at least 7 days. Tracked since Nov 8, 2026, the price hasn't changed.
$7.75
Today it costs $7.75 on AliExpress. Since Nov 8, 2026, when we started tracking it, the price hasn't changed. We haven't tracked it long enough yet to say whether it's on sale.
We have tracked this product for 1 day; confirming a drop takes at least 7 days. The store advertises "was $8.80", but that is the store's own claim; we only state discounts our price history proves.
View on AliExpressThe price above is the last recorded reading, not a live checkout lookup.
Price history
Today$7.75steady
The price hasn't changed once since Nov 8, when we started tracking it.
Hover over the chart to see each price.Tap the chart to see each price.
| Store | Digalai Store |
|---|---|
| Positive feedback (AliExpress) | 100% |
| AliExpress category | Electronic Components & Supplies › Active Components |
| Recorded readings | 1 |
| First seen | |
| Last reading |