Product Description

Do You Need an Extra Accessory? 
Step 1
Use pliers to short the wall button terminals, if the garage door opens or closes, it works. Otherwise, please go to point 2.
Compatibility list is in the “Product guides and documents-User Guide” .
Accessory manual is in the “Product guides and documents-Instructions for Use (IFU)”

Step 2
If point 1 fails, your garage opener is from Chamberlain/LiftMaster/Craftsman. MSG100HK will still work(needs an extra accessory). Please claim the accessory on the meross web or send the support team the information for your garage opener and we will send you the appropriate accessory individually.
The video showcases the product in use.The video guides you through product setup.The video compares multiple products.The video shows the product being unpacked.
For more installation information, please search for the video “meross MSG100”. If you meet any issue about our product, simply contact meross support team. Accessory manual manual is in the “Product guides and documents-Instructions for Use (IFU)” of the page.
Data Encryption
Meross has powerful data encryption functions to protect your information security.
Offline Control
When the internet is down, you can still control your devices in home network via Meross app.Close the door automatically when the door is still open after a particular time.
Auto Close
Close the door automatically when the door is still open after a particular time.
Package Contents :1 x Smart garage door opener, 1 x USB adapter, 1 x Door sensor with sensor wire, 4 x Screws, 1 x Test wire, 1 x Double-sided adhesive tapes,1 x User manual.
The Existing Wall Button and Existing Remote Control can still work, after you installed the meross garage door opener.
Installation Steps 
Step 1 – Compatibility Check
The product is compatible with more than 1600 models and 200 brands. Please follow the instructions to complete a simple compatibility test.

Step 2 – Connect the Phone
Connect your smartphone or tablet to a 2.4GHz network and ensure that your smart device is covered by a powerful network signal.

Step 3 – Install the Sensor
Please make sure the distance between the two sensors is less than 1 inch when the garage door is closed.

Step 4 – Deploy the Device
Install the wire from the sensor to the garage door opener. We recommend deploying the device on top of your existing garage door opener.

2.4GHz WiFi network support only: If you keep failing during the setup process and your router has both 2.4GHz and 5GHz WiFi, you may need to temporarily turn off 5GHz on your WiFi router and make sure your smart device is always covered by a strong 2.4GHz WiFi signal.
More Smart Devices from Meross
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Customer Reviews
4.3 out of 5 stars
11,328
4.3 out of 5 stars
11,328
4.3 out of 5 stars
11,328
4.3 out of 5 stars
11,328
4.3 out of 5 stars
192
4.3 out of 5 stars
159
4.3 out of 5 stars
4,107
Price
$49.99$49.99
—
$35.99$35.99
$69.99$69.99
$39.99$39.99
$79.99$79.99
$38.99$38.99
Number of Control Doors
1
Up to 3
1
Up to 3
NA
NA
NA
Works with Apple Home
YES
NO
NO
YES
YES
YES
YES
Works with Google Home
YES
YES
YES
YES
YES
YES
YES
Works with Alexa
YES
YES
YES
YES
YES
YES
YES
Works with SmartThings
YES
YES
YES
YES
YES
YES
YES
Control Method
App&Voice
App&Voice
App&Voice
YES
App&Voice
App&Voice
App&Voice
Remote Control: You can turn the garage door on/off from anywhere with internet access via the Meross app. To let in your family, guests, or couriers through the garage door while you are cooking or not at home. No monthly fee or any other subscription fee! Note: 2.4GHz network support only
Voice Control: You can control your devices hands free, just give voice commands to turn on/off the connected devices. Compatible with Apple HomeKit, Siri, Amazon Alexa, Google Assistant, and CarPlay. Please scroll down and check the “Product guides and documents – User Manual” for more product information
Compatibility Check: It is compatible with more than 200 brands. Please follow the instructions on this page to do a simple compatibility test or refer to our compatibility list”Product guides and documents-User Guide”. If your garage door needs accessories to solve compatibility issues. please send meross support team the information about your garage opener, we will send the right accessories for you individually
More Precise and Stable: It comes with a high sensitivity sensor that monitors the status of the garage door more accurately and the signal stays stable. And you can check the garage door open/ close operation records through the app. Stay alert by different notification modes such as garage door open/ close status, overtime notification, and overnight notification to remind you to close the garage door
Easy to Install: Installation is much easier than you may think. Please make sure your network strength is acceptable near your garage door. If you meet any issue about our product, simply contact meross support team. You can search for videos of “meross garage opener” or “meross MSG100” to learn more about features and installation instructions
Evan R –
Nice addition to my smart home setup
These workâ Matter setup was easy and works well. They are set up directly in the Alexa app!Iâm not a huge fan of Cync smart home products, especially their lightbulbs (I prefer Kasa and Philips Hue). But I have a couple older Cync bulbs that are not wifi-enabled (or something?) and donât play nice with my Alexa. I read that if you add a wifi-enabled Cync product (like these plugs) to your smart home setup, it somehow fixes the issues with the older bulbs and makes them work properly with everything. And lo and behold, once I set up these plugs, my older Cync bulbs were communicating perfectly with Alexa!Those older lightbulbs still had to be set up in the GE Cync app. But I did NOT set up these newer plugs with the Cync app â I set them up using Matter (the instructions walk you through this). For Matter setup, you need a little QR code thatâs on a sticker on each plug. In case I ever need to set them up again, Iâm trying to hang onto the stickers by leaving them stuck on each plug. But if you lose any of them, the QR code is also printed really small on the back of each plug. The stickers are just more convenient.
Evan R –
Tommy F. –
Works great!
They work great as timers to turn on my grow lights for my carnivorous plants in the morning and turn them off in the evening. I have the other plug for my air purifier so I dont have to get out of bed to turn it on. Install was easy and it works seamlessly with google home
Tommy F. –
RobertoC_73 –
Work with Matter, but barely
Iâve bought Matter-compatible smart plugs from three different brands. None of them have worked with Apple Home out of the box. In the case of Cync by GE, at least they worked with Apple Home, but only after pairing them with the Cync app then factory resetting each plug. The whole point of Matter is supposed to be not having to download yet another app, but these plugs would not connect via Apple Home at all, until I paired them with the Cync app. Iâm taking one star off just for making me download another unwanted app, an app that made me create an account before it would do anything useful.
RobertoC_73 –
Jon Reilly –
Reliable and handy
GE CYNC products seem to be very reliable. I haven’t had a single problem with them in the several months I’ve owned these plugs.
Jon Reilly –
Linda J. –
Does not last
I have purchased two of these in the last year and both stopped working. Just ordered one in the last month and it has already stopped working. Terrible product.
Linda J. –
Amazon Customer –
Don’t waste your money!
Terrible product. I purchased one plug to see how it worked. Set up is clunky with the app, but I finally worked out the scene/schedule thing. The plug worked great! I ordered 3 more plugs and got them all set up followed the exact same method as the first plug and while setup “worked,” from the moment I had more than 1 plug, none of them would stay connected to the wifi and working off bluetooth just made every plug disconnect as soon as I left the room. The schedules didn’t work and the only way to utilize what was plugged into the plug was to manually use the app to turn on the plug while I was in that room, but as soon as I left the room, the plug turned off.Support suggested factory reset and start over. Same results. I thought there might be a problem with the wifi signal, so I manually forced connection to the 2.4ghz. Same results. We were about to upgrade our entire wifi network with new hardware to troubleshoot this issue but then…I decided to try the AMAZON SMART PLUG on Prime Day and they have worked absolutely FLAWLESSLY from the moment I swapped out all the Cync plugs. I’ll never look back and never purchase another Cync product. The Amazon Smart Plugs work exactly as the Cync plugs *should” but don’t. What a waste of time and money!
Amazon Customer –
Rob Starnes –
Easy to setup
Out of most choices of accessories for Smart products, the GE is the best for Alexa or Google. Quick, easy setup. Lasts a long time because I’ve had one for my coffee machine two years now and still using it. Very good price when bought in bundle packs like this one.
Rob Starnes –
Cor224 –
Love these plugs!
These are so easy to set up and work great with Amazon Alexa. Highly recommend them!
Cor224 –