High Precision Gauss Meter Hall Sensor Magnetic Flux Density Detector RS485 Modbus RTU Magnetic Pole Tester Magnetometer Module
$18.75
Today it costs $18.75 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. The store advertises "was $22.06", 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
$18.75
We started tracking this price on Oct 23. The chart takes shape over the days: we only draw prices we observed.
| Store | ElecDemo Official Store |
|---|---|
| Product rating | — |
| Store rating | — |
| AliExpress category | Consumer Electronics › Smart Electronics |
| Recorded readings | 1 |
| First seen | 10/23/2026 |
| Last reading | 10/24/2026, 7:46:19 AM UTC |