Smart switch Sonoff T3 EU 3-channel Wi‑Fi with RF 433 support

Sonoff T3 EU is a 3-channel smart switch that replaces conventional wall switches and provides touch, Wi‑Fi and RF 433 control for three independent circuits. Made from heat‑resistant ABS and toughened glass, the unit includes soft backlighting for night visibility and is suitable for controlling lighting and small household loads. It works with the eWeLink app on iOS and Android for remote operation and supports voice assistants and scheduling for automated on/off routines.

Advantages

The Sonoff T3 EU offers three independently controlled channels, local touch control and remote operation via Wi‑Fi or 433 MHz RF remote. Constructed from heat‑resistant ABS and tempered glass, it features gentle backlighting for ease of use in the dark and immediate status synchronization with the eWeLink app. Scheduling and multi‑user sharing are supported to manage lighting and reduce unnecessary power consumption.

Suitable for

• Control of three lighting circuits in homes or apartments
• Replacement of conventional wall switches for small household loads
• Remote on/off via smartphone or RF 433 remote
• Automated lighting schedules and multi‑user control

Key specifications

• Model: T3EU3C-TX
• Channels: 3
• Input voltage: 100–240 V AC
• Maximum per channel: 1 A / 100 W
• Wireless: Wi‑Fi 802.11 b/g/n, WPA‑PSK/WPA2‑PSK
• RF: 433 MHz support
• Materials: toughened glass / PC, heat‑resistant ABS
• Dimensions: 86 mm x 86 mm x 35 mm
• Color: Black

How to use

Install the Sonoff T3 EU in place of an existing wall switch following local electrical regulations and ensuring power is disconnected before wiring. Once installed, connect the device to your home Wi‑Fi and add it to the eWeLink app on iOS or Android. Use the capacitive touch surface for local control, an RF 433 remote for wireless local control, or the app for remote operation, scene setup and scheduling. Voice assistant integration can be configured through the eWeLink app where supported.

Usage recommendations

Use the Sonoff T3 EU for lighting and other small loads within the specified per‑channel limits (1 A / 100 W). Do not exceed rated current or connect inductive loads beyond the device capability. Share access in the eWeLink app with household members for convenient control and set schedules to avoid unnecessary power consumption. If unsure about installation, hire a qualified electrician to connect the device safely.