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.
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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
Jeff –
Amazing device, it only needs software to catch up
Okay so first of all, this unit is great. It includes a temperature sensor, light sensor (measures lux in the environment), and of course a motion sensor. It operates off of batteries which, after more than a month, still shows as basically 100% in the app. The batteries are 2x AAA, so easy to replace when needed. Since it’s battery operated, you can put it anywhere without any install unless you want to permanently mount it somewhere. You can adjust the sensitivity of the sensors so they trigger actions more (or less).From the Hue app, you can set how you want it to behave. Only want to enable it when the room is dark (determined by the light sensor and whatever trigger value you set)? No problem. Only enable it after 10pm? Sure. It’s quite powerful.There are some missing features that could be implemented though, some of which do have workarounds. And accessing the raw data (sensor states and values, etc) is actually quite easy with the Hue Hub since it has an accessible REST API. So here’s my situation, and an example of how I was able to work around a missing feature that I wanted.The Goal: This motion sensor sits in my bedroom to turn on all of the lights when someone walks in or is active in the room. It needs to “see” most of the room because I don’t want dead spots where the lights just shut off because it can’t see I’m in there. However, I don’t want it to ALWAYS turn on the lights when it senses movement, because even at the lowest sensitivity setting it “sees” when I move in my sleep and causes the lights to come on.The Missing Feature: While you can turn the motion sensing of this unit on and off via its settings in the Hue app, there is currently no way to completely disable the sensor. Sure, you can say “From 10pm to 6am, when you detect motion, do nothing.” That effectively gives you the same result. But it doesn’t work for the problem I’m trying to solve, because what if I go to bed late? What if I get up early? What if my fiancée wants to sleep in longer than me and I inadvertently trigger the lights when I get up?The Solution: My house primarily utilizes the HomeKit ecosystem (i.e., Apple Home) and it integrates with Hue allowing you to complete some actions/automations/shortcuts with calls to Siri or by activating them manually via the Apple Home app. It doesn’t support the motion sensor directly, but I set up a Raspberry Pi running Homebridge to create a “dummy switch” with the name “Motion Sensor”. I then created two shortcuts – one that submits a REST API call to the Hue bridge to completely disable the motion sensor (leaving the others intact), and one to enable it. I then set the “Motion Sensor” switch to call one of those shortcuts whenever the switch is toggled. I added it to the Bedroom zone, so at that point I could enable/disable the motion sensor with Siri: “Siri, turn off the bedroom motion sensor.”) Apple Home already has a couple of default Scenes that you can modify to suit your needs, one of these is “Good Night”. I added the “Motion Sensor” dummy switch to this scene with instructions to toggle it off.So now, I can say “Siri, good night” and it will turn off all of the lights in the house, turn off the TV and fan, and disable the motion sensor in the bedroom. I then created a similar “good morning” that turns the motion sensor back on (among other things) when we’re both awake.
Jeff –
Lance Witt –
It just works.
Iâm no expert but I have been toying around with home automation slowly over the years. I wanted to do simple motion activated led strip light for a stair way. I have experimented with a few other ones but found that for ease of setup and reliability itâs the way to go.
Lance Witt –
SPD –
You get more then what you pay for
Not only is this is motion sensor, which works great, but itâs also A light sensor and temp sensor. It shows up in both the Alexa app and Apple Home with an added temp sensor that shows the temp of that room. Phillips Hue always delivers!!!
SPD –
Harmon –
Plays well with Apple
I bought several Hue products to act as a system for automating my household lights in certain rooms for daily use, & also to give the illusion that someone is at home when no one is. The products included the one for which I am posting this review, and I will be posting the identical review for the other products I bought. The products involved are the White Ambiance Decorative Candle 40 W dimmable, the White Ambiance 60W Dimmable, the Dimmer Switch with Remote, the Motion Sensor, and the Hue Hub. I use these products over an eero based WiFi system, with the Apple HomeKit app operating on my Apple TV4. I control them remotely from my iPhone and my iPad, using the Home app from Apple and the Hue app. (You really need to use both to set the system up, because it maximizes your options to do so.)Setting up the system was quite easy, and all of the accessories work as one would expect. Nevertheless, there is room for improvement, which is why Iâve rated all of them, together, as 4 rather than 5 stars.The biggest problem I have with the system concerns our chandeliers. Both of the ones we have are dimmable, and one of them is controlled by switches at two different doorways. Both of them take 3 light bulbs, and neither of them will function reliably if all three of the bulbs are Hue bulbs. The problem is that when all three of the bulbs are Hue bulbs, they flicker on & off, rendering it impossible to use the chandelier at all. This is a known issue with certain light fixtures which are dimmable, and Phillips is upfront with the likelihood that this could occur. Unfortunately, you wonât know if you have the problem till you try it out. The best solution is to rewire the chandeliers so that they are not dimmable. But pending having that done, I discovered that the living room chandelier works just fine if one light socket is left empty. Not true for the dining room chandelier, but for that one, I discovered that if two of the bulbs are Hue, and the third is a refrigerator light bulb, the flickering does not occur. The problem is that in order to use the scheduling & remote features for the Hue bulbs, the socket the bulbs are in have to be switched on all the time, which means that in the dinning room, the refridgerator light winds up being on all the time.A minor problem I have with Hue lights is that they are all 60 watts (or less). This is not bright enough to read by. For instance, I had three 100 watt bulbs in both our chandeliers, and even when I get three Hues to operate correctly in them, itâs not quite bright enough. Iâm hoping that Phillips is working on higher watt versions of the Hue bulbs.The remote device and the motion detector work just fine. Oddly, the motion detector also gives the temperature at the place where it is positioned.For what itâs worth, the ordinary Hue bulbs will work outside even when the temperature drops as much as 20 degrees below zero. At least, thatâs been my experience after about a month of use involving a lot of subzero temperatures.
Harmon –
Co –
Existen muchas buenas opciones sin embargo considero que este es el mejor dispositivo en su clase dura mucho la baterÃa y es muy confiable muy bien construido excelentes materiales.
Co –
Brian S. –
Easy to setup and I put in Laundry Room because light switch is in a weird spot. I set the occupancy timeout to 10 seconds, which is the fastest. I set automation mode to restart and have three triggers… depending which one there is an action: I turn the light on from motion detected trigger, turn light on from switch trigger delay 5 min and turn light off, and turn light on from motion clear trigger (eg. after its 10 sec of no motion it detects), which starts the 5 minute delay and turns light off. Any of these three triggers will stop current automation and restarts it again.Mounting is simple. It is magnetic so I have it stuck on a metal curtain hanger hook above window so no screws required. The mount also has a hole in it and can be screwed in with the included screw and wall anchors. The sensor then magnetically attaches to this little mount which I believe can be positioned at different angles but I just stuck mine straight in them mount because the angle is fine for a room.
Brian S. –
Freshy17 –
Además de cumplir su función como sensor de movimiento, en Apple Homekit (desconozco si también lo hace con otras aplicaciones de smart home) es genial que detecte la cantidad de luz. Lo coloqué en el baño y empieza a detectar movimiento a las 5:40 pm PERO solo enciende las luces si está suficientemente oscuro y baja del nivel de lux que le configuré. Eso es genial porque con los cambios de horario de verano, es mucho mejor que ajustarlo a un horario fijo. Sirve mucho colocarlo en areas de mucho trafico como pasillos y escaleras, o para encender luces de baños, closets y habitacionesLo único âmaloâ que le he encontrado es que tarda unos dos o tres segundos en encender las luces. Un pequeño âdelayâ pero nada grave. Le da mucho valor al sistema de Hue
Freshy17 –
Kindle Customer –
This works with Alexa, and is sufficiently small to be unnoticeable to unwelcome intruders.
Kindle Customer –
Cem s –
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Cem s –