T0US Reset & Teardown (FCC ID 2APN5T0US)

Before you buy the Sonoff (Itead) T0US, check what's inside.

The Sonoff T0US is a Wi-Fi enabled in-wall smart switch designed for integration into existing electrical systems. It allows for remote control and automation of lighting and other connected appliances through the eWeLink app.

⚠️ NOTE: Disconnect Mains power before installation or servicing. Ensure wiring is performed by a qualified electrician.

Quick Specs

• Manufacturer: Sonoff (Itead)
• Model: T0US
• Protocol: WiFi
• Chipset: ESP/CK Chip
• Ecosystem: Sonoff
• App: eWeLink

🔧 Geek Corner (Flashing Info)

• Chipset: ESP8285
• Flashable: ✅ Yes
• Info: Uses ESP8285 chip, commonly flashable with Tasmota/ESPHome.

User Manual

Scanned pages from the official user manual:

External Photos

Photos of the device exterior:

Internal Photos

Teardown photos showing the PCB and components:

Verdict

The T0US is a WiFi device from the Sonoff ecosystem.

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433 RF
FCC Warning
This equipment complies with FCC RF radiation exposure limits 
set forth for an uncontrolled environment.
This equipment should be installed and operated with a minimum 
distance of 20 centimeters between the radiator and your body.
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