TDS Sensor Module Dissolved Solids Analog Signal Soluble Solid Water Quality Detection DS18B20 Temperature for Arduino 51/STM32
Quick answer
Is $4.47 a good price for TDS Sensor Module Dissolved Solids Analog Signal Soluble Solid Water…?
It is the usual price, not a deal: $4.47 is in line with the typical price of $4.47 that DipScout measured over the last 4 days. Tracked since Oct 22, 2026, the price hasn't changed.
$4.47
Today it costs $4.47 on AliExpress. Since Oct 22, 2026, when we started tracking it, the price hasn't changed. By our price history, it is not on sale right now.
No drop compared with what we observed over the last 4 days.
View on AliExpressThe price above is the last recorded reading, not a live checkout lookup.
Price history
$4.47
We started tracking this price on Oct 22. The chart takes shape over the days: we only draw prices we observed.
| Store | Hornaxy Electronic Store |
|---|---|
| Product rating | — |
| Store rating | — |
| AliExpress category | Electronic Components & Supplies › Active Components |
| Recorded readings | 1 |
| First seen | 10/22/2026 |
| Last reading | 10/23/2026, 2:01:09 AM UTC |