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
Add to Cart
Add to Cart
Add to Cart
Add to Cart
Add to Cart
Add to Cart
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
Garrett Zwolenski –
Works well, easy setup
Had the switch for over a year and had no issues. Bluetooth setup is easy to use with Apple Homekit, have not had issues with range but I have a fairly small house. When the power goes out, automatically re-connects unlike wi-fi switches which I sometimes have to re-pair to Homekit. I see lots of reviews with issues with homekit, but have not experienced that myself.
Garrett Zwolenski –
richie –
Generally works ok but falls out of HomeKit monthly
**December 16, 2019 update:After becoming terribly frustrated by the fact that it falls off of homekit even more often than monthly, I have swapped the eve switch in the laundry for this switch in the bedroom. My wife could not tolerate this thing any longer. After moving to the laundry, I really just want it to turn off the light after 15 min. Unfortunately it is now falling off of homekit after days instead of weeks. So I tried to set up the device in the native app to not work with any smart system, just the sylvania app. The app crashed 6 times getting the firmware loaded for sylvania control. In that mode you can do exactly two things: turn it on, and turn it off. I was hoping I could at least just program in a schedule that resided only on the bulb that would turn it off every night, but that is not the case. Crashed the app a few more times, but eventually set it back up for homekit. If you have to re-pair it into homekit so often, it cannot be worth anything.This switch works really well as a dumb switch. The paddle switch for on an off feels nice when clicking and responds well.As a smart switch it works exactly as expected for a Bluetooth Homekit switch. I use it to trigger automations and also in scenes and automations. Often the first time triggering the device from a phone or automation will lag up to 6 seconds, but then will be very quick on any subsequent action. This is expected for HomKit bluetooth devices, and I was fully expecting this based on previous BLE Homekit devices.The device has had two main issues so far in the 6 months since purchase.1. the app is a dumpster fire. It is ONLY used for firmware updates if you use HomeKit. However, when you enter the app it shows you EVERY SINGLE HOMEKIT DEVICE you have. It even has a button to attempt to update the firmware on every single device you have. This is just dumb. It is also dumb that you cannot even check the status of your sylvania devices, or even lookup the product manual for the sylvania devices you have connected. If you end up signing in on the app, it wants to turn the device into an Alexa/Google/BLE mesh device and disable HomeKit and also just turns into a slow blob of not functioning.2. The switch has to be re added to homekit every month without fail. It basically just goes into pairing mode all on its own and then has to be re added. Unfortunately, my wife is the one who always discovers this, so I’m not sure how many months this thing has left in it before I will have to replace it with something more stable. (it is possible that someone is resetting this device accidentally, but that is just as bad. to reset all you have to do is hold the paddle down for 5 seconds, which is far too easy to do)
richie –
Steve –
Love it
It is Amazing I have had 0 problems with it. I do not use the app for it I just control it through the home app on my iPhone. Works with Siri and everything and was super simple to install!
Steve –
JAMES –
If you have older wiring, proceed with caution
This switch does work. But it requires a 3 or 4 wire electrical box if you want to install it easily. That means red (secondary hot makes circuit), black (hot), white (neutral or lead wire) and green (ground) preferably.In older houses, that protocol was generally not done. So you have to modify the house wiring in the electrical box to accommodate the switch. It does work, however.If you don’t now what you are doing, definitely call your electrician.Regarding the switch itself, it seems that the connection to HomeKit is inconsistent. I’m talking about direct commands from the phone app to turn the switch on or off.Initially, I thought this might be because I didn’t start the connection with the Sylvania app. But even after downloading, updating and reconnecting that way, it doesn’t always respond.I have also noticed that using Siri with that switch sometimes doesn’t work or delays a minute or 2 before initiating the command.I have also noticed that since installing iPod minis to HomeKit that inconsistency with the switch has increased when playing music. I have super fast wifi, so it doesn’t seem to be related to that.I haven’t figured out yet if there is some kind of HomeKit software command priority or if to is strictly switch related. But since the inconsistency was present before the install of the iPod Minis, I suspect the problem if with the switch.It’s a bummer because I have 4 more of these switches and don’t really want to hassle with the inconsistent performance. I am thinking about trying the Lutron switches to see if they configure better.
JAMES –
W. Cerniuk –
Works OK and then Fails Hard
UPDATE:The switches are out right failing. My garage switches and my basement switch no longer works physically or through homekit. They just went dead. I will be replacing the remainder of the Sylvania switches (working or not) with Meross units which have been proven to be incredibly reliable.Based upon problems with another Sylvania product (the smart colored spotlight bulb) I will not be buying any Sylvania products in the future.ââââââââââââââââââââInitial operation is ok. The switch has an annoying delay for triggering on-off, clearly software driven and slow.Out of 6 of these, 2 have flat out failed completely after less than a year of operation and 1 keeps on falling out of HomeKit enrollment and has to be re-enrolled regularly. That’s a 50% failure rate.On the high side, Sylvania stood behind their products and are shipping out 3 replacements with no hesitation. That’s a big deal.Be ready to use a file to widen your decora wall plates if you try to use this switch in a gang plate. The switch lever is slightly too large for the standard decora plate and you have to physically modify any non-Sylvania plate so the switch fits. Widen it enough so the switch does not stick because if it sticks, it resets. ;-). Frankly, this is poor engineering and portends more poor engineering as noted above.
W. Cerniuk –
Fran V. –
It is ok. Good price for the switch but the app is finicky.
It was easy to install but the app is really bad. I tried the update and it will only work on my iPad but not my iPhone. It looses network connection all the time after applying the firmware update. The app needs some serious updating as it is buggy.
Fran V. –
Miguel Angel Flores –
Excelente opción para control desde IOS, completamente sin Hub, no requiere módem Wifi, no he tenido problemas con la conexión, solo que al ser Bluetooth tiene menor rango que la opción Wifi, por lo que si hay mucha distancia podrÃa haber problemas, de otra manera es una opción muy confiable.
Miguel Angel Flores –
Jasiel –
No sirve, ya lo instale y no funciona, o quizá lo instale mal, si el vendedor me puede ayudar lo agradecerÃa
Jasiel –
Nico Pelaez –
El producto cumple. Con lo prometido. Es impresionante señalar que se tiene que verificar antes el cableado de la casa o donde se instalará. Ya que puede presentar problema con l tipo de cableados en la cuidad de Mexico
Nico Pelaez –
Oscar –
Ya lo probé con Siri y funciona perfectamente, se ve súper bien aunque me hubiera gustado que tuviera acabados más premium, fuera de esto el producto me parece fácil de instalar, cumplió con lis espectativas
Oscar –
Irving –
Funciona bastante bien, me costó un poco de trabajo la instalación porque tuve que cablear, pero una vez instalado funciona de maravilla con HomeKit.
Irving –