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
Random User –
Didnât work for me. The app is broken.
I was able to download the app and add the sensor without having to create an account, but without an account, I canât link it to other smart hubs and ecosystems. I tried to sign up for an account, but it keeps telling me to enter an email address after I just entered the email. I tried using different emails and keep getting the same thing. It will keep asking you to provide an email so it can send you a code to verify your email is valid, but it never accepts any email as a valid email. This may or may not be a good product, but I canât even get it setup to see if itâs good or not due to the terrible software. If you are adventurous enough to try this sensor out make sure the software is working properly before you make the purchase.
Random User –
Jgil –
Domótica
Los dispositivos han funcionado adecuadamente, un poco complicado para programar.
Jgil –
Jacky Duncan –
Good potential but poorly executed
The BroadLink BLE Smart Sensor Kit seems like a great idea but poorly executed. Hereâs what I mean: 1. I could never get an account created because the app keeps asking for an email address even after it is entered correctly. It is virtually useless if you canât create an account. 2. It does not work with the regular BroadLink app. 3. I was able to get the humidity/temperature sensor connected, but the app does not display the correct humidity or temperature. It shows 32 degrees F and 0% humidity all the time. The sensor display seems accurate. 4. Cannot connect to other hubs like SmartThings. 5. When I enabled the Alexa skill it added 28 devices to the Alexa app. These are apparently scenes for lights I do not have. Bedroom, Dining room, Living room, Secondary bedroom, and study all have 4 to 6 devices/scenes for light color and/or brighteness. If I had bulbs and wanted these scenes, I would prefer to create them myself. Now I have to delete all this crap. 6. When I installed the temperature/humidity sensor it added 2 more devices with their names in Chinese.After over an hour thatâs as far as I got. I am using an iPad Pro with the latest software. You can see from the oldest review (Dec 22, 2022), and most since, that this is an ongoing issue. I was planning to buy additional BroadLink products but not anymore. I have above average tech skills and canât imagine the torment most people would have trying to set this up. Until these bugs are fixed I cannot recommend this product.
Jacky Duncan –
Army Vet –
Dissapointing
The purpose of a radar motion sensor is to pick up minute movements like breathing. Sadly, this is a motion detector that does not pick up such motion.I will say that it picks up motion much more quickly than a PIR sensor. So, there could be some use for this item, just not the same as other motion detectors using mmwave technology.I also hope that Broadlink comes up with some integrations to other smart home hubs (like smart things an hubitat). Another bluetooth-based system (switchbot) does a great job with this type of integration.Another positive is that the costumer support was decent via Facebook message.
Army Vet –
Carlos F. –
reverendo desastre no sirve
detecta si, sirve no, continuamente se desconecta. El sensor de temperatura/humedad no lo maneja ni la propia app del broadlink ble, las rutinas que programe con Alexa / Google Home NO FUNCIONAN. Tampoco se integra con el Broadlink RM que emite IR/RF directamente no ve los dispositivos asi que debes usar un software de terceros como el Google Home / Alexa pero tampoco puede manejarlos asi que mejor ahorrate dinero y dolores de cabeza.
Carlos F. –
Terry –
Works good, after you get over setup hurdles
I got these for my storage shed, to detect when someone approaches, the door is opened/closed, and monitor the temperature. I scanned the QR code and downloaded the iOS app first, and initially setup the Hub. It detected it immediately and sync’d it to my WiFi with no problems, then came the door sensor, and the problem. It detected the sensor and added it to the app with no issues, and the sensors was working because I could see the light flicker whenever I triggered it, but I was not getting any notice in the App that the sensor had done anything. I then decided to add an account in the App, and after going through all the steps there… still nothing. I was getting very frustrated so I decided to log out of the App completely and then waited and logged back in, after I did that all the “history” showed for the sensor and anytime I triggered it would show, but I was not getting any notification on my phone like it was suppose to. So after playing with the settings more and getting frustrated again for it not working, I decided to try logging out of the App again and waiting and logging back in, and after I did, it started working perfectly the sensor triggered and I would get a notice on my phone that it was “open” and when triggered again that it was “closed”. A lot of hassle, too much actually, for something that should be simple. I next setup the motion sensor, and then the temperature sensor; both were detected immediately by the App. The motion sensor worked and sent notifications right away now, so I was relieved. I placed the small door sensor on the main door of the shed and the larger sensor on the frame above, the temperature sensor on the wall by where i work, and the motion sensor under the patio roof where you walk up. I have a power strip mounted on the shed wall, and it includes USB ports, so I mounted the mini Hub on a stud next to it and plugged it in there, because it is required for the sensors to send WiFi notifications to the App (otherwise its just within Bluetooth range). I had my wife test and when I am all the way in the house, I get notifications from both the motion and door sensors. I am pleased, now that I finally got it working, I saw other reviews of people having similar issues and I recommend setting up an account and logging out and in when setting up the sensors to see it you get good operation.
Terry –
Daniel Balderas –
Instale con el app el gateway y luego el sensor de temperatura pero al instalar el sensor de movimiento te tira del app y no vuelve a funcionar tienes que volver a instalar todo pero sin poder instalar el sensor de movimiento porque si lo haces vuelve a pasar que te saca
Daniel Balderas –