User Manual

FCC ID: 2AE2J-4CH

Users Manual

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FCCID_3449308

Hi, welcome to use Sonoff 4CH Pro! Sonoff 4CH Pro is a 4 channel (4-way) din rail mounting 433MHz RF remote WiFi

switch that can independently control the 4 home appliances. It supports switching among 3 working modes:

inching/interlock/self-locking mode.

Power supply: 90-250v AC(50/60Hz)/5-24v DC. Max current: 10A/gang.

1. Download “eWeLink” app.




Search “eWeLink” in APP Store for iOS version or Google play for Android version.

2. Wiring instruction

If you want to connect the Sonoff 4CH Pro with lights or appliances. Please strictly follow the wiring diagram as shown below:


You may choose to power up by 5-24V DC or by 90-250V AC. Each relay without voltage output.

If you connect the Sonoff 4CH Pro with a motor, the wiring instruction is as below:


3. Add Device

1. Power up your device through 90-250v AC(50/60Hz) or 5-24v DC.


2. Press and hold one of the 4 ON/OFF buttons for 7 seconds until the wifi LED fast blinks 3 times and repeat.




3. Click the “+” icon on eWeLink to search device, click next.

For iOS users, they will see two pairing method icons to select, here please select the 2nd icon.

The App will auto-search the device.




4. Enter your home SSID & password:

4.1 If your WiFi doesn’t have a password, keep it blank.

4.2 Now eWeLink only support 2.4G wifi communication protocol, 5G-WiFi-router is not supported




5. Next, the device will be registered by eWelink and add it to your account,it takes 1-3 minutes.




6. Name the device to complete.

7. Maybe the device is “Offline” on eWeLink, for the device needs 1 minute to connect to your router and server. When the

wifi LED is on, the device is “Online”.

3. Working Mode Settings

You can set the switch among 3 working modes: inching/interlock/self-locking mode.

1. In self-locking mode, you can turn on/off the 4 connected devices independently. For example, if you turn on CH1,

connected device keeps on. If you turn off CH2, connected device keeps off.


2. In inching mode, you can turn on the connected devices for 0.25
                                                              0.25-4s.
                                                                   4s. For example, you can turn on CH1 connected device

for 1s, then auto-off.




3. In interlock mode, you can turn on 1 device every time, and turn off other devices at the same time. For example, if you

have turned
          d on CH2, then when you turn on CH3, CH2 will be auto
                                                           auto-turned off at the same time.


We will introduce how to switch among the 3 modes below:


As you can see from the image, there are S5, S6, K6 and K5.

CAUTION: Please cut off the power supply before switching S5, S6, K5, K6. Whether you use DC or AC input, make sure you

have unplugged the power plug every time!!!It’s
                                           It’s very dangerous if you don’t cut off the power supply, and the new settings

can not be activated.




S6 is interlock /inching&self-locking switch:: Toggle to the right(0), it enters into interlock mode; Toggle to the left(1), it

enters into inching &self-locking mode.


K5 is inching/self-locking switches:: From left to right, there are 1, 2, 3, 4, correspondingly for channel 1 (CH1), channel 2

(CH2), channel 3 (CH3), channel 4 (CH4). Toggle the switch down (0), the corresponding channel enters into inching mode;

Toggle the switch up (1), the corresponding channel enters into self
                                                                self-locking mode.

Please note that if S6 is toggled to the right(0), yyour 4CH Pro is in interlock mode, it’s invalid to set K5.

K6 is used to set the delay time for inching mode
                                             mode.. From left to right there are 1, 2, 3, 4, correspondingly for CH1, CH2, CH3,

CH4. Toggle all switches down (0000), the inching time will delay for 4
                                                                      4s;
                                                                        s; Toggle all switches up (1111), the inching time will

delay for 0.25s.

Please refer to the delay time setting list below:




4. RF Remote Settings

Pairing with 433MHz RF Remote:Quickly press twice one of the switches below, then press one of the ABCD butt
                                                                                                        buttons
                                                                                                             ons on your

RF Remote. If paired successfully, the button will lit up in red, and the corresponding status LED will blink in green for 4

times. You can press the button to turn on or turn off the related channel.


Clear 433MHz Coding: S5 is 433MHz code clearing button, please press and hold it until the 4 LEDs lit up green and off.

5. APP Features

1. Use WiFi to remote control 4 devices separately.

Turn on/off by tapping on device icon. Device status will simultaneously display on the interface.

2. Share Control




The owner can share the devices to other eWeLink accounts. While sharing devices, both should stay online on eWeLink.

Because if the account you want to share is not online, he/she will not receive the invitation message.

How to make it possible? Firstly click Share, input the eWeLink account (phone number or email address) you want to share,

tick the timer permissions (edit/delete/change/enable) you want to give, then click Next. The other account will receive an

invitation message. Click Accept, the device has shared successfully. The other account will have access to control

your device.

3. Timing


Supports max 8 enabled single/repeat/countdown timer to auto-turn on/off connected appliances. Preset timers can work

even WiFi is unavailable, but the device must keep power on.

4. Scene

Scene allows triggering on/off your devices automatically. Scene Settings is in the upper right corner of Device List. You can

set up scenes or smart scenes to trigger on/off Sonoff 4CH Pro.

Users should select “Click to execute” in the condition, add different existing devices, name the scene and save it.

4. Problems and Solutions

Read the detailed FAQ on Itead Smart Home Forum. If below answers can’t solve your problem, please submit a feedback on

eWeLink.

1. My device has added successfully but stays “Offline”.



Answers: The newly added device need 1-2 min to connect to your router and the Internet. If it stays offline for a long time,

please judge the problem by the wifi led status:

1.1. Wifi led quickly blinks one time and repeats, which means device failed to connect to the router. The reason may be you

have entered wrong WiFi password or your device is too far away from the router, which causes a weak WiFi signal. The

device can not be added to the 5G-wifi-router, only the 2.4G-wifi is OK. At last, make sure that your router is MAC-open.

1.2. Wifi led slowly blinks one time and repeats, which means the device has connected to router and server but failed to

be added to device list. Then power on the device again, if it still not working, just add the device again.

1.3. Wifi led quickly blinks twice and repeats, this means the device has connected to the router but failed to connect to the

server. Then please confirm your WiFi router works normally.

2. Why the APP can not find the device in pairing status?

Answers: That’s because of your phone’s cache. Please close the WLAN of your phone then open it after a minute. At the same

time, please power off the device if you can, then power up to try again.

3. My WiFi is expired, can I connect the devices to LAN? Can my phone be directly connected to device hotspot?

Answers: Currently this product does not support LAN or directly connect to hotspot. It must connect to the WiFi router.

4. The wifi led keeps off, even if the device is powered on. Press the button but the device does not work.

Answers: The circuit may be broken, please send it back for testing. Return shipping postage and packaging will be at buyer’s

expense, if the device is damaged by the buyer, and the buyer should bear extra repair cost.


FCC Caution
This device complies with part 15 of the FCC Rules. Operation is subject to the
following two conditions: (1) This device may not cause harmful interference, and (2)
this device must accept any interference received, including interference that may
cause undesired operation.

Any Changes or modifications not expressly approved by the party responsible for
compliance could void the user's authority to operate the equipment.

Note: This equipment has been tested and found to comply with the limits for a Class
B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to
provide reasonable protection against harmful interference in a residential installation.
This equipment generates uses and can radiate radio frequency energy and, if not
installed and used in accordance with the instructions, may cause harmful interference
to radio communications. However, there is no guarantee that interference will not
occur in a particular installation. If this equipment does cause harmful interference to
radio or television reception, which can be determined by turning the equipment off
and on, the user is encouraged to try to correct the interference by one or more of the
following measures:
-Reorient or relocate the receiving antenna.
-Increase the separation between the equipment and receiver.
-Connect the equipment into an outlet on a circuit different from that to which the
receiver is connected.
-Consult the dealer or an experienced radio/TV technician for help.

This equipment complies with FCC radiation exposure limits set forth for an
uncontrolled environment. This equipment should be installed and operated with
minimum distance 20cm between the radiator & your body.



Document Created: 2017-06-28 19:22:02
Document Modified: 2017-06-28 19:22:02

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