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
Tom P –
Set up in minutes – so easy
I used this so I could turn my x-mas tree on and off. The outlet is hard to get to behind the tree. This was very easy to set up and works perfectly.
Tom P –
Napo O –
Great WiFi Smart Plugs.
I love they came in a very small package. Two smart plugs at this price was so tempting.Extremely easy to set up with Apple HomeKit, just plug it, scan the QR code with HomeKit app and device will be added to your home group right away. If you already have a Meross account and have linked that account to Google Home and Alexa, adding this WiFi Smart Plugs will take less than 5 minutes. You just need to add it to your Meross account by selecting the right type of outlet, connect it to your 2.4 GHz network, and that is it. Then they will appear in your google home and Alexa app almost instantaneously.It is very convenient that you can use them with your favorite assistant application. I will certainly get more as I automate most of my devices at home.They have a very small footprint. The side button is a big plus, it is easy to manually turn it on or off even if the whole front is covered.(An issue I run into in the past with other smart plugs) Status light is small and not very bright, at night you will not even notice they are in your room.I have been using their previous smart plugs for over 2 years. (We also have a dimmable switch)They have been adding more features to the app to create routines based on time, as well as scenes to control several plugs at once. It is good that they always keep the settings even if you unplug them for several weeks. I have never had any issue with the smart plugs.From time to time the app logs me out, more likely than not after an update.I totally recommend this brand and any device made by them.
Napo O –
Ryan –
Seamless
Works perfectly with no lag on HomeKit. Easy setup. Good range
Ryan –
K. Horton –
These plugs work with HomeKit but are finicky to install
First off, these plugs are integrated into our HomeKit system and they work well. However, they were difficult to attach to our network. We have a Linksys Velop tri-band mesh system. In order for these plugs to be initialized and connected to our Wi-Fi, we had to make sure we were at the farthest reach of one of our stations to ensure we were likely on the 2.4 ghz band. In our case, the garage was the perfect place to get these plugs on the network. It took between 1 and 3 tries – moving around a bit each time – for the operation to be successful.One surprise was that the app you download does not handle the connection to HomeKit. Once the serial number was scanned and we connected to the plugâs Wi-Fi, the HomeKit app opened and handled the rest of the connection process.
K. Horton –
winter is coming –
Firmware update a nightmare, beware privacy breach
I purchased a few of these a few months ago and was able to install without any problems using apples HomeKit. However recently I got a firmware update notification in the apple Home App. It says to install the firmware app using the Meross app, but when you go to do this the app does not recognize the devices. When you go to add them to the Meross app the devices donât pair, and they are left unusable until you clear them out of the HomeKit and reinstall. Wasted 3 hours fooling around with this. Had to shut off my home router and reinintialize everything. The app is a total joke, and also make you register with them to their Chinese site, which frankly, eliminates the advantage of HomeKit and its privacy.Updated: I now believe that these units are used by the Chinese to spy on your personal network. I would advise placing these on an isolated node behind a firewall unless you want your personal information stolen.
winter is coming –
Joseph Shewman –
Programming the routine
Worked as expected. I did not want to set up a routine where the smart plug was turned off and on on a set schedule but wanted to turn it on or off when I needed to when away from home. Had to use the routine and set it to turn the smart plug off at a certain time (turned the day of week off), and then had to setup and another routine to turn the smart plug back on again a minute later (again with day of week turned off). I have a blink camera that would go offline if there was a glitch in the internet coverage in the area, and would have to manually turn the blink camera sync module power off and back on to reset it and allow the blink camera system to work properly again. I can now power it off and on remotely when I see that our camera system has gone offline and this device allows me to get it working again.
Joseph Shewman –
Laura Huggins –
Update: Problems after a couple days
Update: only a few days in and the plug is unresponsive even after resetting. Not super happy about that. May return if I can’t get it work again.I set these up using HomeKit, took all of 2 minutes. They work flawlessly within the Apple Home app, no need for another app download to set up. I’ve had Amazon smart plugs and this one was way easier to set up. Highly recommend!
Laura Huggins –