1. Producte acabatview
The SONOFF T2EU-RF is a 433MHz wireless RF remote wall panel switch designed to provide convenient control over compatible SONOFF smart devices. This stick-on remote controller offers the appearance of a traditional wall switch but operates wirelessly, eliminating the need for complex wiring. It can be affixed to any wall surface, offering flexible placement options for controlling your lights or other connected devices.

Image: The SONOFF 433MHz Wireless Stick-on Smart Wall Switch, highlighting its RF control capability.

Image: The SONOFF T2EU-RF 3-gang wireless switch alongside its product packaging.
2. Característiques clau
- Instal·lació sense cablejat: Designed for easy setup without the need for electrical wiring, allowing for flexible placement anywhere in your home.
- Easy-to-Locate Backlight: Features a subtle backlight for improved visibility in low-light conditions.
- Disseny a prova d'esquitxades: Offers protection against splashes, making it suitable for various indoor environments.
- Forta penetració a la paret: Utilizes 433MHz RF technology for reliable signal transmission through walls, ensuring consistent control.
- "One for More" Control: A single wireless switch can control multiple compatible SONOFF devices or lights.
- "More to One" Control: Multiple T2EU-RF switches can be paired to control a single compatible SONOFF device or light.
- Two-Way Control Capability: Can be paired with SONOFF TX wall switches (sold separately) to enable two-way control of lights from different locations without additional wiring.
- Protocol de RF de 433 MHz: Compatible with a range of SONOFF smart devices that support the 433MHz RF protocol.

Image: Visual representation of key features including wiring-free, backlight, splash-proof, strong wall penetration, one for more, and more to one control.
3. Contingut del paquet
Si us plau, verifiqueu que tots els elements que s'enumeren a continuació estiguin inclosos al vostre paquet:
- SONOFF 433MHz Wireless Stick-on Smart Wall Switch (T2EU-RF) x 1
- Cargols x 2
- 3M Adhesive Tape x 2
- Manual d'usuari x 1

Image: The back of the product box, detailing the package contents and product specifications.
4. Especificacions
| Atribut | Detall |
|---|---|
| Model | T2EU3C-RF |
| Freqüència RF | 433.92 MHz |
| Color | Blanc |
| Font d'alimentació | 6 V (cel·la botó de 3 V x 2) |
| Model de bateria | CR2032 |
| Materials | PC V0 + Tempered Glass Panel |
| Dimensions (L x A x A) | 86 x 86 x 9 mm (3.39 x 3.39 x 0.35 polzades) |
| Distància de control remot | >50 m (espai obert) |
| Tipus de muntatge | Panel Mount (Stick-on) |
| Tipus de circuit | 3 vies |
| Tipus d'actuador | Pulsador |
| Fabricant | SONOFF |
5. Configuració i instal·lació
The SONOFF T2EU-RF is designed for simple, non-invasive installation. It does not require electrical wiring.
5.1 Muntatge de l'interruptor
You have two primary options for mounting the wireless switch:
- Using 3M Adhesive Tape:
- Clean the desired wall surface thoroughly to ensure it is free of dust and grease.
- Peel off the protective backing from the 3M adhesive tape provided.
- Firmly press the switch onto the cleaned surface for at least 30 seconds.
- Ús de cargols:
- Identify the screw holes on the back or mounting plate of the switch.
- Mark the desired drilling locations on the wall.
- Drill pilot holes if necessary and secure the switch to the wall using the provided screws.
5.2 Pairing with Compatible Devices
The T2EU-RF is a remote controller and must be paired with a compatible SONOFF 433MHz RF receiver device (e.g., SONOFF RF Bridge, RFR2, 4CHPROR3, etc.) to control lights or other appliances. The pairing process typically involves putting the receiver device into pairing mode and then pressing a button on the T2EU-RF switch.
Refer to the user manual of your specific SONOFF receiver device for detailed pairing instructions.

Image: The T2EU-RF wireless switch being used to control a compatible SONOFF smart device, such as the SlampferR2 smart bulb adapter.
6. Instruccions de funcionament
Once successfully paired with a compatible SONOFF RF receiver, the T2EU-RF switch operates as a remote control for your connected devices.
6.1 Funcionament bàsic
- Activació/desactivació: Press any of the three buttons on the T2EU-RF switch to toggle the state (on/off) of the paired device or light. Each button can be assigned to control a different device or channel on a multi-channel receiver.
6.2 Advanced Control Scenarios
The T2EU-RF supports flexible control configurations:
- "One for More" (Control Multiple Devices): A single T2EU-RF switch can be paired to control multiple lights or devices. For example, one button could turn on all lights in a room, or each button could control a different light.
- "More to One" (Control One Device from Multiple Locations): Multiple T2EU-RF switches can be paired to control a single light or device. This allows you to turn a light on or off from different entry points in a room or hallway.
- Control bidireccional: When paired with a SONOFF TX series wall switch (not included), the T2EU-RF can enable two-way control, allowing you to operate a light from two distinct locations without the need for traditional two-way wiring.

Image: Diagram showing how one T2EU-RF switch can control multiple lights or devices.

Image: Diagram showing how multiple T2EU-RF switches can control a single light or device.

Image: Diagram demonstrating two-way control functionality when the T2EU-RF is paired with a SONOFF TX series wall switch.
7. Manteniment
7.1 Substitució de la bateria
The T2EU-RF switch is powered by two CR2032 button cell batteries. If the switch becomes unresponsive or its range decreases significantly, the batteries may need replacement.
- Carefully pry open the back cover of the switch.
- Traieu les piles CR2032 velles.
- Insert two new CR2032 batteries, ensuring correct polarity (+/-).
- Encaixeu la coberta posterior fermament al seu lloc.
7.2 Neteja
To clean the surface of the switch:
- Utilitzeu un suau, lleugerament damp tela.
- No utilitzeu netejadors abrasius, dissolvents ni productes químics agressius, ja que poden danyar l'acabat o els components interns.
- Ensure no liquid enters the device. Although splash-proof, it is not designed to be submerged or exposed to direct water jets.
8. Solució De Problemes
| Problema | Causa possible | Solució |
|---|---|---|
| Switch is unresponsive / Device does not react. |
|
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| Reduced control range. |
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9. Garantia i Suport
For technical support, warranty information, or further inquiries, please contact SONOFF directly.
- Fabricant: SONOFF (Shenzhen Sonoff Technologies Co., Ltd.)
- Oficial Weblloc: sonoff.tech
- Correu electrònic del servei: support@ihead.cc
Note: According to product information, this model (T2EU3C-RF) has been discontinued by the manufacturer. Support availability may vary.





