MQ Series Kit MQ-2 Smoke Sensor MQ3 Alcohol Sensor MQ4 MQ5 MQ6 MQ7 MQ8 MQ9 MQ-139 Gas Sensor Module MQ-2/3/4/5/6/7/8/9
$3.07
Today it costs $3.07 on AliExpress. Since Oct 23, 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 less than a day; confirming a drop takes at least 3 days.
View on AliExpressThe price above is the last recorded reading, not a live checkout lookup.
Price history
$3.07
We started tracking this price on Oct 23. The chart takes shape over the days: we only draw prices we observed.
| Store | LLXX Store |
|---|---|
| Product rating | — |
| Store rating | — |
| AliExpress category | Electronic Components & Supplies › Active Components |
| Recorded readings | 1 |
| First seen | 10/23/2026 |
| Last reading | 10/23/2026, 2:02:57 AM UTC |