4ch 3.3V 5V 12V 24V Digital Logic Level Conversion Module PNP/NPN to NPN Optical Isolation Board for Arduiuo NANO STM32 AVR
Quick answer
Is $4.25 a good price for 4ch 3.3V 5V 12V 24V Digital Logic Level Conversion Module PNP/NPN to…?
Too early to tell: DipScout has tracked this price for 6 days, and comparing it with a typical price takes at least 7 days. Tracked since Oct 22, 2026, it ranged from $4.22 to $4.25.
$4.25
Today it costs $4.25 on AliExpress. Since Oct 22, 2026, when we started tracking it, it ranged from $4.22 to $4.25. We haven't tracked it long enough yet to say whether it's on sale.
We have tracked this product for 6 days; confirming a drop takes at least 7 days.
View on AliExpressThe price above is the last recorded reading, not a live checkout lookup.
Price history
Last reading$4.25on Oct 24
Lowest$4.22Oct 22 to Oct 23
Highest$4.25Oct 23 to Oct 24
Tracked since Oct 22 · 1 changeHover over the chart to see each price.Tap the chart to see each price.
See every price change
| When | Price | Change |
|---|---|---|
| Oct 23, 16:08 UTC | $4.25 | +0.7% |
| Oct 22, 15:42 UTC | $4.22 | start |
| Store | Eletechsup Manufacture Brand Store Store |
|---|---|
| Product rating | — |
| Store rating | — |
| AliExpress category | Electronic Components & Supplies › Active Components |
| Recorded readings | 2 |
| First seen | 10/22/2026 |
| Last reading | 10/24/2026, 5:06:28 PM UTC |