Sonoff Hum

Hi, welcome to use Sonoff Hum warm mist humidifier! The device supports remotely turn on/off and adjust 3 humidity levels. Power Supply: 100-240V AC. Power: 25W.

1. Download “eWeLink” app.

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

Register an account if you haven’t got any, and sign in.

2. Fill in Water

2.1 Please fill the tank with water. Do NOT use hot water.

Note: to avoid possible white dust due to hard water, it is recommended to use distilled or filtered water. Do not fill the water all the way to the humidifier rim. 

2.2 Plug to power up the Sonoff Hum. Turn the control knob to ON, the LED beside will light up red. If the mist starts to emit in a few seconds, please follow below steps to add it to the APP EweLink.

3. Add device

3.1 Enable your mobile WiFi and connect to your home WiFi. Your WiFi must work normally.

3.2 Open EweLink, tap “+” icon.


3.3 Remember to turn on your Sonoff Hum. The led will light up red.


3.4 Then quickly turn OFF and turn ON for 3 times. (OFF –>ON for 3 times) The led will light up green and start to blink.


3.5 For Android, please select the 1st icon, click next.

For iOS, you will see two pairing method icons to select, please select the “Touch” pairing icon, then click next.

3.6 Input your home SSID & password:


1. If no password, keep it blank.

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

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


3.8 Name the device to complete the adding process.

3.9 Maybe the device is “Offline” on eWeLink, for the device needs 1 minute to connect to your router and server. When the green LED on, the device is “Online”, if eWeLink shows still “Offline”, please close eWeLink and re-open.

4. APP features


4.1. Remote ON/OFF

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

4.2. Adjust humidity level

Click the 1/2/3 to adjust the humidity level. 1 is mild, 2 is medium, 3 is strong.

4.3. Display water level: normal and shortage. When it displays shortage, you’ll need to refill water, or the device will auto-off.

4.4. 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 user will have access to control the device.



Support max 8 single/repeat/countdown timing schedules each device. Preset timers can work even network is unavailable, but the device must keep power on.

4.6. Security mechanism

One device one owner. Other people can not add the devices that have already been added.

4.7. Update

It will auto-remind you of new firmware or version. Please update as soon as you can.

5. Problems and solutions

Read the detailed FAQ  on Itead Smart Home Forum.

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 green led status:

1.1. Green 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 WLAN, only the 2.4G-wifi is OK. At last, make sure that your router is MAC-open.

1.2. Green led slowly blinks one time and repeats, which means the device has connected to router and server but failed to be added to the device list. Then power on the device again, if it still not working, just add the device again.

1.3. Green 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’t find the device in pairing status?

Answers: That’s because of your phone’s cache. Please close WLANof 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?

Answers: Currently eWeLink does not support LAN or cannot connect to the hotspot. All devices must be connected to the router, thus they can communicate with the Internet cloud server.

4. The green 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.