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#7 in Smart Outlets
Sonoff S40 Smart Plug
Sonoff
$12.00 – $16.00
Wi-Fi smart plug with energy monitoring and overload protection rated at 15A for high-draw appliances. Works with eWeLink app and supports flashing with Tasmota firmware for advanced local control.
8.1
Good
Consensus
Don't buy this if…
- Flashing custom firmware like Tasmota voids the warranty and requires technical knowledge of serial flashing tools.
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