Smart WiFi 3 Way Dimmable Switch Kit
  • Replace traditional 3-way switches where a light is controlled from two switch locations.
  • Dim your INC, CFL and LED bulb to suit for different scenes.
  • Works with Apple HomeKit*, Amazon Alexa, Google Assistant, SmartThings.
  • Control your lights anytime anywhere via Meross app.
  • Easy to install and setup. No extra hub required.
  • Neutral wire(white) required. Works with 2.4GHz Wi-Fi only.



 *Only MSS570XHK supports HomeKit, MSS570X does NOT support HomeKit.





1.  Smart Wi-Fi 3-Way Switch

       Replace traditional 3-way switches where a light is controlled from two switch locations like living rooms, stairways, and hallways.


2. Smart Dimmable Switch

     With MSS570, you can dim your INC, CFL and LED bulb to suit for different scenes.


3. Scene and Routine

     Scenes like away, arrive, night, dinner are available for you to preset. You can group multiple devices in a scene and enjoy it. Create on/off schedules or set auto-off

     timer routine to work automatically. Sunrise/Sunset Routines are ready. Random On/Off function will be added via firmware update soon.



4. Control from Anywhere.

     Control your lights with MSS570 by Meross app (iOS or Android) locally and remotely*2. Turn on/off and dim lights, set schedules and timers. All in Meross app. You

     can use multiple mobile devices to control Meross devices from anywhere with one Meross account.


5. Voice Control

     Compatible with Amazon Alexa*3 and Google Assistant*3. To control your lights by voice commands, just ask Alex or Google Assistant.



6. Easy Install

     No need to understand complex wiring, with the intuitive setup wizard in Meross app, the wiring process has never been easier.


7. No Hub Required

  MSS570 works with existing secured 2.4GHz Wi-Fi in your home*4. No additional hub or accessories required.



    *1 *2 Internet connection is required.

   *3 You’ll need to pair MSS570 with Amazon Alexa or Google Assistant. Any Echo or Google Home devices needed are not included in MSS570. Amazon, Alexa and all related logos are trademarks of Amazon.com, Inc or its affiliates. Google is a trademark of Google LLC.

   *4 5GHz only Wi-Fi is not supported. And if you are using a Mesh Wi-Fi system, you might need to turn off its 5GHz Wi-Fi temporally if you can NOT connect MSS570 to your Mesh Wi-Fi.




                                   Hardware Feature


Input 90-125V~, 50/60Hz


90-125V~, 50/60Hz

400W max. for INC

150W max. for CFL&LED




Master Switch:

1 x On/Off button: Press and hold for 5 seconds to initiate factory reset process


2 x Brightness button

1 x Reboot button


Add-on Switch:


1 x On/Off button


2 x Brightness button



Master Switch:

5 x Brightness LED

1 x Status LED


Add-on Switch:

1 x Status LED


4.1 x 1.7 x 1.6 in. (without faceplate)

5.0 x 3.3 x 1.6 in. (with faceplate)

Antennas One internal antenna


                                   Wireless Features


Wireless Standards IEEE 802.11 b/g/n, 2.4GHz, 1T1R                               
Wireless Security Support 64/128 bit WEP, WPA-PSK/WPA2-PSK
*Does not support Enterprise WiFi.




Certifications FCC, ETL
Package Contents

1 x Smart WiFi 3 way dimmable switch (Master)

1 x 3 way dimmable switch (Add-on)

2 x Faceplate

8 x Wiring nut

4 x Screw

1 x Wiring label

1 x User manual
System Requirements Smartphone running iOS 9 or higher, Android 4.1 or higher
Existing WiFi network


Operating Temperature: 0°C~40°C (32°F~104°F)

Storage Temperature: -40°C~70°C (-40°F~158°F)

Operating Humidity: 10%~90% non-condensing

Storage Humidity: 5%~90% non-condensing







                                                  1. How many smart home devices can the Meross app control?

                                                  2. Can my Meross smart home devices be controlled by multiple phones?

                                                  3Do Meross smart home devices retain the selected settings if it encounters a power outage?

                                                  4Will the Schedule and Auto off feature still take effect if the Internet is down?

                                                  6What should I do if my smart home device time doesn't match the real time?

                                                  7How do I control Smart Devices by Amazon Echo/Dot/Tap with voice commands?

                                                  8How do I connect my Meross devices to Amazon Alexa?

                                                  9Why I didn't find my device on "Select a Device Page" in Meross app?

                                                  10Do my Meross smart devices support Campus, Hotel, Airport or Shopping Mall WiFi Hotspots?

                                                  11How do I connect my Meross devices to Google Assistant?

                                                  13After been successfully used for a while, my Amazon Alexa or Google Assistant is unable to control Meross devices.

                                                  14How to make my Meross devices work with IFTTT?

                                                  15. Do Meross devices work with my Fritz!Box?

                                                  28. What should I do when I can’t turn the wall switch on/off manually?

                                                  29. What should I do when my Meross app is unable to control the added wall switch?

                                                  30. Only one of the two electrical boxes have neutral wire, will it work?

                                                  31. My two traveler wires are in same color, I can’t tell Traveler-1 from Traveler-2.

                                                  32. My switches are not working. All brightness LEDs are blinking and I can’t turn on and off my light.

                                                  33. My lights would turn off automatically after I turn it on.

                                                  34. The status LED is on while brightness LEDs are not blinking, and I can’t turn on and off my light.

                                                  35. The lowest gear is still too bight. How can I dim my light?

                                                  36. My light keeps flicking when I dim it. How to solve this?

                                                  41. How to make my Meross devices work with SmartThings app?