Product Description
eWeLink Officially Integrated with Huawei HiLink
The Smart Life app can directly control devices, supports Xiaoyi speaker voice control, and can link more smart devices for more smart scenarios.
Third-party integration with Smart Life app.
DIY Your Smart Home with 4CHR3 WiFi Smart Switch Module (4-Channel)
Remote control, voice control, smart scheduling, shared control
Status feedback, LAN control, inching mode, interlock mode
4CH R3 4-Channel Controller
Functions:
Self-locking: control each channel independently
Max Current: 10A/channel, 16A/total load
Voltage: 90-250V AC
Output equals input
Use: control circuit on/off
4CH PRO R3 4-Channel Controller
Functions:
Self-locking: control each channel independently
Interlock: only one channel stays on; turning on another closes all others
Inching: set 1-16s inching pulse
RF: supports 433MHz
Max Current: 10A/channel, 10A/total load
Voltage: 90-250V AC; 5-24V DC no output (pure switch, other end needs input)
Use: control circuit on/off, motor forward/reverse
Functional Features
Three Modes for Different Scenarios
4CHR3 supports inching and interlock modes, configurable in the app
· Interlock mode: turn on one device, others turn off automatically
· Inching mode: turn on one device, auto-off after 0.5-3600s
More Devices, Smarter Together - Interlock Mode
One channel controls one working state. Enable interlock to open one device while closing others.
| Garage doors | blinds | wall fans | ceiling fans |
No need to get up — open or close blinds and garage doors automatically from your phone. Simply press one channel in the app to open and another to close.
Turn On, Then Auto-Off - Inching Mode
Want the hallway light to turn off after you leave?
Enable inching mode to schedule the light on;
when the set time is reached, it turns off automatically.
Voice Control, Hands-Free
Supports voice control with multiple popular smart speakers. Just say your command and it executes.
Xiao Ai, Xiao Du, Tmall Genie
Smart Scheduling
Set a time monthly, weekly, or daily. Devices turn on/off automatically per schedule. 4 groups can be timed independently.
7:00 AM turn off lights
6:50 PM turn on lights
Remote Control via App
Forgot to turn off devices when leaving?
No distance limit.
One tap to remotely control home appliances.
Shared Control
Share with family via WeChat.
One tap to control home appliances, making smart switches part of your life.
Product Display
Easy to Connect Distant Devices
Mount on DIN rail to easily connect and control devices far from the switch.
1. Mount on DIN rail 2. Move to the right position 3. Press the clip to secure the switch on the rail
Safety First
Durable flame-retardant PC housing enhances safety during operation.
Tmall Genie Binding Method
1.Download eWeLink app and bind/pair your device;
2.Download Tmall Genie app, tap "My Home" at the bottom of the home screen;
3.Tap "Add Device", type "eWeLink" in the search box;
4.Select the corresponding icon by device type to enter the eWeLink account binding page;
5.Enter your eWeLink account and password to complete binding, then tap device sync.
Quick Add
1. Download and install the eWeLink app
2. After powering on, long-press any channel button for ~7s until the Wi-Fi indicator flashes quickly
3. Tap the "+" button in the app and follow the instructions to add
Comparison: 4CHR3 / 4CHPROR3
Feature | 4CHR3 | 4CHPROR3 |
433MHz Control | - | √ |
Dry Contact | - | √ |
AC Input | √ | √ |
DC Input | - | √ |
3-Month History Log | √ | √ |
Interlock Mode | APP | APP |
Inching Mode | APP | APP |
Self-locking Mode | - | APP |
Dimensional Drawin
Wiring Diagram
Note: If the device is connected to a socket, do not plug in high-power appliances. Each individual channel of the device must not exceed the maximum load (2200 watts)
Product parameters
Parameter | Value |
Product Name | SONOFF Smart 4-Channel Module |
Model | 4CHR3 |
Control System | eWeLink App |
Voice System | Xiao Ai / Xiao Du / Tmall Genie |
Voltage | 100-240V AC |
Current | 10A/channel, 15A/total |
Max Load | 2200W/channel, 3500W/total |
Channels | 4 |
Wireless Type | WiFi 2.4GHz |
Wireless Standard | IEEE 802.11 b/g/n |
Supported Platform | Android 4.1 & iOS 9.0 or above |
Power Supply | Live and neutral wire |
Panel Material | PC V0 flame-retardant |
Dimensions | 145×90×34mm |
