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
VivaLaFashionista –
Simple and Efficient! âââââ
I wish I’d found these sooner! I purchased the 2-pack, and now I am going to buy 2 more! These are the best gadgets I’ve purchased in a long time. Easy to install, easy to add to wifi, easy to use app! Just overall simple to use – and very efficient! Perfect for programming the timer, alternating the times, and using on your phone via the app, if you forget to turn on the lamp or didn’t schedule the programmer. Five Stars! âââââ
VivaLaFashionista –
Michele G –
Easy to set up
These plugs were really easy to connect to the app made for the plugs, and they can be linked to the Amazon Alexa app extremely easy as well. The app allows you to create a schedule for turning on/off, and so far it has worked flawlessly. Great value and great product!!
Michele G –
Chris R. –
Works with Alexa, after a couple days.
At first I didnât think it was going to sync with the Alexa. But after a couple of nights it seems like I did. It does not work with my Insta on system however. So I have to use Alexa specifically for this outlet.
Chris R. –
Brian Burke –
Great little devices, but…
I picked up two of these devices based on their ability to work with dual band networks to replace some older WiFi smart plugs from another vendor. Initially, the setup was quick and easy. Download the Android app, discover the plugs, configure the plugs, add UltraPro to a linked connection with Google Home, and done! The first device took all of 5 minutes start to finish. The second one however was much more of a challenge, but not because of the plug itself, but because of my WiFi.My WiFi is powered by an Asus ZenMax WiFi mesh router with a single satellite router to connect the other end of the house from the main router. I configured both plugs in my front room (closest to the main router) and they both worked fine. Moved one plug to it’s permanent home (even closer to the main router) and it worked fine. The second plug was to be furthest from the main router, but very close to the satellite router. Best I can figure is that the satellite router, despite broadcasting both 2.4Ghz and 5Ghz wireless bands, was broadcasting something just different enough that I could not utilize the plug in the location I wanted to with the wireless being setup as is.My solution was to enable a Guest WiFi network which only broadcasted at 2.4Ghz, connect my phone to that network, go into the UltraPro app and then I was finally able to add and configure the second plug in the location where it was to stay. It functions correctly through both the app on my phone over the 5Ghz network as well as through my Google Home.While annoying, I do not place blame on the smart plug. This was a challenge with my particular WiFi setup. Hopefully this will help others in the future. We plan to pick up a couple more as well.
Brian Burke –
Jason Russell –
I feel smarter already
I have two of these connected to lamps. Being able to tell Siri or Google to turn on the lamps anywhere, anytime, is fantastic.Before connecting these to lamps, I used them for exterior Christmas lights. Just put them on a schedule in the app. Easy peasy! Will have to get more of these.
Jason Russell –
Josh McCarthy –
Couldn’t Connect
I have 13-14 Ultrapro wifi toggle switches in my house and after experimenting with the “scene” setting in the app, I decided to try these Ultrapro smart outlets. Im familiar with the Ultrapro app and integration with Alexa is flawless. With my previous experience I expected no difficulty in adding these smart plugs. I was wrong….. At first the plugs auto populated in the app to “add new device”, my wifi info is already on the app so it started connecting. I did this several time and ended up with the app “timeout” as I guess it took too long to connect to these new plugs. I reset these several times per the app instructions and no luck. I attempted several time to “manually” add the plugs and it still was either undiscoverable or timed out. Now I have one of those big boi tri-band router and the devices connect to it with out an issue whether its 2.4, 5, or the few 6ghz that are connected to my network. Most of these smart home devices I have are 2.4ghz including all of my Ultrapro switches and have auto connected to which band the required without issue. After probably close to an hour, I decided to dumb down my router and disabled the 5ghz and 6ghz bands temporarily so my phone and Ultrapro plug can only connect to the remaining 2.4ghz band as required. Still can’t get it to connect. So thats a wrap, back to amazon these go.
Josh McCarthy –
Peter K. –
I’ve been waiting for this solution for decades
UltraPro Smart Plug WiFi Outlets replace mechanical timers. For decades, I had 12 “candles” installed in windows in my home. They were controlled by six mechanical timers – the kind that you depress buttons around a circle starting with the time you want the lights to turn on, and ending with the time you want the lights to turn off. The problem with this setup is that setting the current time is difficult to do accurately and with consistency across all six timers…so the lights turn on and off randomly over several minutes.Enter the UltraPro Smart Plug WiFi Outlets. I got rid of the mechanical timers and replaced them with six outlets. I then connected each one to the UltraPro app on my cellphone (via WiFi). After that, I defined a group called “Window Candles” and added each one to the group. I then set an on/off schedule for the group.At the chosen time, all six outlets turned on at approximately the same exact time, and turned off similarly. Works perfectly!I put our live Christmas tree on a seventh outlet and added that one to the group. When it’s late at night and we want to turn off the lights on the live tree (to minimize it drying out from the heat of the lights), I can simply go to the app on my cellphone and turn that one off. Brilliant!I highly recommend these outlets.
Peter K. –
ShowDog –
Smart Plugs
The item is great. I have them all over the house. This last order came late, it was opened and inside of another box.
ShowDog –
geethike –
Nice very interesting
geethike –
J.Barlow –
Very easy to connect to my Alexa. Installing the app and connecting took 5 mins
J.Barlow –
Pham –
Very good price/value package.
Pham –
Andre Langlois –
J en ai installés presque partout, maison, cabanon, extérieur
Andre Langlois –
Stephane Charbonneau –
Je ne suis pas capable les configurer avec alexa.
Stephane Charbonneau –