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    • Smart Wi-Fi 3-Way Switch
    • Overview
    • Features
    • Specs
    • Faqs
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    Smart Wi-Fi 3-Way Switch

    MSS550 US
    • • Replace one dumb 3-way switch to make the whole system smart.
    • • Turn lights on/off from anywhere anytime with Meross app.
    • • Works with Apple HomeKit, Amazon Alexa, Google Assistant, and SmartThings.
    • • Create on/off schedules or auto-off timers to work automatically.
    • • LED indicator helps find the switch easily even at night.
    • • Works with the Wi-Fi you already have. No hub required.
    • • Neutral wire (white wire) required. Works with 2.4GHz Wi-Fi only.
    • • Apple HomeKit website listed.
    SPECS
    Input
    • 90-125V~, 50/60Hz
    Output
    • 200W Max. for INC
    • 150W Max. for CFL & LED
    Button
    • 1 x On/Off button
    • Press and hold for 5 seconds to initiate factory reset process
    LED
    • 1 x Status LED
    Dimensions ( W x D x H )
    • 1.7 x 1.5 x 4.1 in. (without wall plate)
    • 2.8 x 0.2 x 4.7 in. (wall plate)
    Antenna
    • 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 Wi-Fi 3 way wall switch
    • 2 x Screw
    • 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
    ○
    Can Meross smart 3 way switch be used in a 4 way circuit system?

    Yes. But you have to install Meross 3 way switch in certain electrical box of a 4 way circuit system (Non-dimmer). A 4 way circuit system contains two 3 way switches and a 4 way switch. You can replace either of the 3 way switches with it as picture below.

    ○
    Switch safety information

         CAUTION: Risk of electric shock

    • Make sure that the power to the wall switch to be replaced is turned OFF.
    • The light switch must be installed and used in accordance with the National Electric Code (NEC) or your local electrical code.
    • Do not install the wall switch with wet hands or standing on wet or damp surfaces.
    • Output power：

                MSS510/MSS560/MSS565/MSS570: Max 400W (INC) and 150W (CEL and LED).

                MSS550: Max 200W (INC) and 150W (CEL and LED).

    Learn More
    DOWNLOAD
    Manual
    UG_MSS550(US)_2104_EN
    Manual
    UG_General-Purpose Homekit user manual