Hall Effect Current Transducer QNDBK1-21 DC 30A 50A 100A 200A 300A 4-20mA Open Current Transmitter Split Core Current Sensor
Quick answer
Is $18.44 a good price for Hall Effect Current Transducer QNDBK1-21 DC 30A 50A 100A 200A 300A…?
No: at $18.44 it is 34% above the typical price of $13.79 that DipScout measured over the last 9 days. The lowest price we recorded since Oct 22, 2026 was $13.79.
$18.44
Today it costs $18.44 on AliExpress. Since Oct 22, 2026, when we started tracking it, it ranged from $13.79 to $18.44. By our price history, it is not on sale right now.
No drop compared with what we observed over the last 9 days. The store advertises "was $18.63", 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$18.44highest ever seen
Lowest$13.79Oct 22 to Oct 27
Highest$18.44since Oct 31
Tracked since Oct 22 · 4 changesHover over the chart to see each price.Tap the chart to see each price.
See every price change
| When | Price | Change |
|---|---|---|
| Oct 31, 04:06 UTC | $18.44 | +0.1% |
| Oct 30, 01:09 UTC | $18.42 | +0.1% |
| Oct 28, 23:07 UTC | $18.41 | +29% |
| Oct 27, 21:08 UTC | $14.25 | +3% |
| Oct 22, 15:43 UTC | $13.79 | start |
| Store | NJQNET Store |
|---|---|
| Product rating | — |
| Store rating | — |
| AliExpress category | Electronic Components & Supplies › Active Components |
| Recorded readings | 5 |
| First seen | |
| Last reading |