RS485 Modbus LED Digital Display Module, TTL UART Serial Port, PLC Industrial Panel Meter, High Brightness Digital Tube Screen
Quick answer
Is $5.42 a good price for RS485 Modbus LED Digital Display Module, TTL UART Serial Port, PLC…?
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 $5.42 to $5.59.
$5.42
Today it costs $5.42 on AliExpress. Since Oct 22, 2026, when we started tracking it, it ranged from $5.42 to $5.59. 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. The store advertises "was $6.58", 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$5.42lowest ever seen
Lowest$5.42since Oct 27
Highest$5.59Oct 22 to Oct 27
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 27, 17:02 UTC | $5.42 | −3% |
| Oct 22, 15:16 UTC | $5.59 | start |
| Store | ElecDemo Official Store |
|---|---|
| Product rating | — |
| Store rating | — |
| AliExpress category | Computer & Office › Computer Components |
| Recorded readings | 2 |
| First seen | 10/22/2026 |
| Last reading | 10/27/2026, 5:02:24 PM UTC |