1. Introduction
The SONOFF T2EU-RF is a 433MHz wireless RF remote controller designed to provide convenient control over compatible SONOFF smart devices. It features a modern, artistic design similar to the SONOFF TX series wall switches. This remote controller offers flexible installation options and enhances your smart home experience by allowing two-way control and multi-device management without the need for complex wiring.
SONOFF T2EU-RF: Splash Proof, 433MHz Remote, Two-way Control
2. Key Features
- 433MHz RF Protocol: Compatible with various SONOFF smart devices.
- Wireless Control: Control lights and other devices remotely.
- Two-Way Control: Pair with SONOFF TX wall switches for control from multiple locations.
- Multi-Device Control: One remote can control multiple lights, or multiple remotes can control one light.
- Flexible Installation: Supports stick-on, screw-on, and desk-top placement.
- LED Backlight: Brightness-adjustable LED backlight for easy location in the dark.
- Durable Design: Made with PC and tempered glass panel, splash-proof.
Installation Options: Stick-on, Screw-on, Desk-top
3. Specifications
| Parameter | Detail |
|---|---|
| Model | T2EU1C-RF (1 Gang), T2EU2C-RF (2 Gang), T2EU3C-RF (3 Gang) |
| RF Frequency | 433MHz (433.92MHz) |
| Color | White |
| Power Supply | 6V (3V button cell *2) |
| Battery Model | CR2032 |
| Remote Control Distance | >50m (open space) |
| Materials | PC + Tempered Glass Panel |
| State of Assembly | Ready-to-Go |
| Certification | CE, FCC |
| Dimensions | 86mm x 86mm x 9mm (approx.) |
Product Dimensions and Key Specifications
4. Package Contents
The package typically includes:
- SONOFF T2EU-RF Wireless RF Remote Controller (1, 2, or 3 Gang, depending on model purchased)
- User Manual
Note: This device does not include batteries. Two CR2032 button cell batteries are required for operation.
Example of Product Packaging (3-Gang Model)
5. Installation
5.1 Battery Installation
- Locate the battery compartment on the back of the T2EU-RF remote controller.
- Open the compartment cover.
- Insert two CR2032 button cell batteries, ensuring correct polarity (+/-).
- Close the battery compartment cover securely.
Internal View with CR2032 Batteries (Batteries not included)
5.2 Mounting Options
The T2EU-RF offers three convenient mounting methods:
- Stick-on: Use the adhesive backing to attach the remote to any smooth wall surface.
- Screw-on: Secure the remote to the wall using screws (not included) through designated mounting holes.
- Desk-top: Simply place the remote on a flat surface for portable control.
Choose the method that best suits your needs and desired location.
6. Operation
6.1 Pairing with SONOFF Smart Devices
To use the T2EU-RF, it must be paired with a compatible SONOFF smart device (e.g., RFR2, RFR3, 4CHPROR3, SlampherR2, or TX series wall switches). The pairing process typically involves:
- Put your SONOFF smart device into pairing mode (refer to the specific device's manual for instructions). This often involves pressing and holding a button on the smart device until an indicator light changes or a sound signal is heard.
- While the smart device is in pairing mode, press any button on the T2EU-RF remote controller.
- The smart device should acknowledge the pairing (e.g., by flashing its indicator light or making a sound).
Once paired, pressing the corresponding button on the T2EU-RF will control the linked smart device.
Compatibility with SONOFF Smart Devices
6.2 Two-Way Control
The T2EU-RF can be used to achieve two-way control with SONOFF TX series wall switches. This allows you to control a light from two different positions without the need for additional wiring between the switches.
Two-Way Control Setup Example
6.3 'More to One' Control
You can attach multiple T2EU-RF remote controllers to different wall surfaces to control a single SONOFF smart switch or light. This is useful for controlling a light from various convenient locations in a room.
More to One Control Diagram
6.4 'One for More' Control
The multi-gang T2EU-RF remote (2-gang or 3-gang) allows you to control multiple lights or smart devices from a single remote. Each gang (button) can be assigned to control a different light or device.
One for More Control Diagram
6.5 LED Backlight
The integrated LED backlight on each button helps you locate the remote in the dark. The brightness of the backlight adjusts based on the ambient light it absorbs; more absorbed light results in higher brightness.
LED Backlight in Day and Night
7. Maintenance
7.1 Cleaning
Wipe the surface of the remote controller with a soft, dry cloth. Do not use abrasive cleaners or solvents, as these may damage the finish or internal components.
7.2 Battery Replacement
When the remote's performance degrades or the LED backlight dims significantly, it may be time to replace the batteries. Follow the battery installation steps in Section 5.1 to replace the two CR2032 button cell batteries.
8. Troubleshooting
- Remote not responding: Check if the batteries are correctly installed and have sufficient charge. Replace batteries if necessary. Ensure the remote is within the effective range (>50m in open space) of the paired device.
- Pairing issues: Ensure the target SONOFF smart device is in pairing mode before attempting to pair with the T2EU-RF. Refer to the smart device's manual for specific pairing instructions.
- Interference: While the 433MHz RF protocol is generally robust, strong radio interference might affect performance. Try repositioning the remote or the controlled device.
9. User Tips
- Optimal Pairing: When pairing, ensure the SONOFF smart switch is in RF pairing mode. Typically, this involves pressing and holding a button on the switch for 3-5 seconds until an audible signal or light change occurs. Then, press any button on the T2EU-RF remote to complete the pairing.
- Button Feel: Some users find the buttons to be small and close together. Take care when pressing to ensure you activate the intended function.
- Placement: Utilize the stick-on feature for convenient placement near frequently used areas, such as beside your bed or at the bottom of a staircase, to avoid hard-to-reach wall switches.
10. Safety Information
- Do not expose the device to extreme temperatures, humidity, or direct sunlight.
- Keep the device away from water and other liquids.
- Do not attempt to disassemble or repair the device yourself. Refer to qualified personnel for service.
- Dispose of batteries according to local regulations. Do not incinerate batteries.
- Keep button cell batteries out of reach of children. Swallowing can cause serious injury or death.
11. Warranty and Support
For warranty information and technical support, please refer to the official SONOFF website or contact your retailer. Keep your purchase receipt for warranty claims.
