Smart Wi-Fi 3-Way Dimmer Switch Kit
MSS570 US
  • Replace traditional 3-way switches where a light is controlled from two switch locations.
  • Dim your INC, CFL, and LED bulb to suit different scenes.
  • Works with Apple HomeKit, Amazon Alexa, Google Assistant, SmartThings.
  • Control your lights anytime anywhere via the Meross app.
  • Easy to install and setup. No extra hub required.
  • Neutral wire (white) required. Works with 2.4GHz Wi-Fi only.
  • Apple HomeKit website listed.
HomeKit Version:
Non-HomeKit Version:
SPECS
Input
  • 90-125V~, 50/60Hz
Output
  • 90-125V~, 50/60Hz
  • 400W max. for INC
  • 150W max. for CFL&LED 
Button
  • 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 
LED
  • Master Switch:
  • 5 x Brightness LED
  • 1 x Status LED 
  • Add-on Switch:
  • 1 x Status LED
Dimensions                            
  • 4.1 x 1.8 x 1.5 in. (without faceplate)
  • 4.7 x 2.8 x 1.5 in. (with faceplate)
Antennas
  • One internal antenna
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 Wi-Fi.
Certifications
  • FCC, IC, 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 later, Android 4.1 or later
  • Existing Wi-Fi network
  • *HomeKit version requires iOS 13.0 or later.
Environment
  • 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  
FAQS
Only one side of the 3 way switch works. How to fix it?

You may wired the other switch wrongly. Please turn off the power at the circuit and check your wiring as the user guide illustrate.

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

Please check the LEDs. If all the LEDs are off:
• Make sure that you restore power to the wall switch at the circuit breaker.
• Make sure the wall switch is wired correctly.
• Make sure your primary switch has been installed in electrical box with both live and neutral wire. If you are not sure, switch installation position of your primary and add-on switch and try again.

Learn More
DOWNLOAD
Manual
UG_MSS570(US)_2104_EN
Manual
UG_MSS570HK(US)_2104_EN