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
Rod –
Plug it in
These KMC smart plugs are great, easy to install to your phone for on/off access. They work great have several of these smart plugs about a year old , all working great. Would buy.
Rod –
Fishmom23 –
Love them
Second set of the smart plugs I have bought. Love using them on Christmas lights or lights into a room where the lamp is so far away. Easy to set up and work great with my Google devices.
Fishmom23 –
True Stories Only –
These work very well – a little too big though
First off – definitely buy these, because they do what they say they will, and they make life a whole lot easier (and your home more aesthetically pleasing). Note that I am only using them with the KMC Smart app (not Alexa, voice, or other options), so this review speaks solely to functionality on that app (installed on iPhone).The Negative:1. They are a bit large; if you are installing them on a crowded strip, or even a wall plate with a tight squeeze with a neighboring plug, you may not be able to fit them.2. Slow to pair initially, and sometimes you have to repeat the process before the app connects.3. Sometimes the app shows the connection as offline for no reason. Restarting the app helps. Just a little but annoying glitch.4. You can create a setting that turns ON at a specific time of day (good for Christmas lights), but for some reason, adding a second commend to turn OFF doesnât work.5. I read that they lose all functionality after a blackout, so you have to start from scratch in that instance (pain in the you know what when you have several). However I havenât experienced this personally (very few blackouts in my area).The Positive:1. Well-priced at around $5 apiece2. App is easy to use3. Name each plug whatever you like4. Eliminate the need to keep unsightly cords and switches accessible/visible in your space
True Stories Only –
kaord89 –
Updated review, and happy now…
UPDATE 05/09/20:Everything in the review below is still true, however, after resetting them again, they have been working flawlessly.Tech support is still slow, and relegated to email, but the app seems to have many more bells and whistles, and also includes a plethora of additionalDevices that may be added. I do like the fact that you donât need a hub, so all things considered, Iâm pleased and would definitely buy again.FORMER 3-STAR REVIEW (PERFECT AT FIRST, THEN USESS 3-MO LATER…)I downloaded the app in conjunction with my purchase of (6) KMC Sockets on Amazon about 6-months ago to use with various light. My intent was to schedule times for them to be on and off for safety and convenience at both my personal home, as well as for three Airbnbs.Regarding the sockets âI loved the size as compared to other, larger options, the price, and the ease of setup and use between the devices and the app. There was a small learning curve, but the added benefit of not needing a hub, made up for it.They worked perfectly until yesterday, when I opened the app to turn off a couple of light in the evening, I first noticed my app no longer required the passcode pattern I had set. Then, once the app was opened, it not only looked entirely different, âall of my devices had disappeared.âThis is a large problem, because I will now have. to wait until my Airbnbs are vacant, then physically drive to each house and reconnect each device individually â not an easy task.Then, when I sought help via the app on the âFAQ/Feedbackâ option, the form only allowed 300 characters, required 3 photos, and also, asked specifically âwhichâ device was in question â and âALLâ of my formerly missing devices, showed up in an option window.So, the specificity of my request was narrowed down to a single device, when in actuality, itâs was systemic, and involved all six.My final attempt at procuring assistance, was via the Apple app storeâs app listing âDeveloper Website.â Although I wish I read/spoke many other languages, the entire site was in Chinese (I believe) without any option to translate to other languages. So, that was a dead end.I am hopeful that someone from the developer sees this and contacts me with some solutions. I will have to go and reconnect all six, but would like to know how/why this happened to be proactive in the future or Ill have to choose another option with better customer support.
kaord89 –
Katie B –
Amazing customer service
I’ve had these plugs for a couple years but only use them for Christmas decorations. This year I couldn’t get them to connect. The customer service team has been amazing in helping me and so friendly. After doing some troubleshooting, we ultimately determined the plugs were faulty but even though I’ve had them a couple years, they are replacing them all. Can’t say enough good things about the lady I talked to and just wanted to share what a great company they are.
Katie B –
Shani –
Works Perfectly, When In Use!
Funny story⦠every day when I FaceTime with my friend, at some point in the conversation and he yells âAlexa â¦!â My Alexa answers along with his. So I yell âAlexa stop!â And his Alexa stops too! He gets frustrated, but I laugh hysterically, which frustrates him even more. LOL! Iâve changed her name to Echo but I kept calling her Alexa and sheâs supposed to only respond to my voice, but⦠So to tone down the frustration, I bought these little adapters. Theyâre so easy to use, when I actually remember to turn them on or off.
Shani –
Bella –
Initially bought these for my plants.
This item is amazing! When I say amazing, A-M-A-Z-I-N-G! It’s so organized, there’s no lag when the timer is timed to go on or off. It’s always been on time when set to It’s schedule. I initially bought this for just my plants grow lights, but I use it for other things as well and it’s just phenomenal. Everything about it is easy to use. Connecting to wifi is easy, if you somehow managed to mess something up it just takes holding the button in for a few seconds until you see the led blinking fast and it’s reset. The fun part about this, is that it connects to alexa or google as well. It’s super fun to use!. 10/10 Recommend, don’t sleep on it! ð¤©
Bella –
Don’t fall for the “Free Delivery” promise of any third party vendor. Iâm returning this item and I need to pay for shipping –
Product is good for the price
I have been using this product every day for almost one year unfortunately for me one of them stop working. The other three are perfectly fine thatâs why Iâm giving them only four stars.
Don’t fall for the “Free Delivery” promise of any third party vendor. Iâm returning this item and I need to pay for shipping –
Carlos Alfaro –
Cumple con todo lo que dice, se puede conectar con Alexa, tu celular, etc. y tiene un botón también para prenderlo y apagarlo.
Carlos Alfaro –