merossInterlinked WiFi Smoke Alarm, Hub Required Smoke Detector, Low Battery Alert Silence Button, Wireless Smoke Alarms for Home, Replaceable Battery, Apple HomeKit, SmartThings Supported

After hours of arguing with my partner, who wanted a completely invisible smoke alarm, regardless of whether it could actually save lives in a fire, we compromised with this. It’s obviously not invisible, but the closest I could find. Plain, modern and minimalist, with only a small brand logo and vent holes on its face. The permanent 10 year battery makes it easy to install, and means we won’t be having that stupid conversation again for a decade.

I initially purchased the Interlinked Smoke Alarm and Hub, along with an additional Smoke Alarm, last year. Unfortunately, I encountered the same issue as many other customers, where the hub was a newer version than the additional smoke alarm, though it was compatible with the smoke alarm that came with the hub. Fortunately, upon contacting Meross, they confirmed that this was an issue with the versions being sold last year. They promptly rectified the situation and issued a refund for the smoke alarm with the older firmware version. I now have two smoke alarms of the same version and a compatible hub, and everything is functioning perfectly—thanks to the support staff at Meross for their assistance.The hub and alarms are straightforward to set up and seamlessly integrate into Apple HomeKit if you use it. The test feature from your phone works effectively, allowing you to hear the alarms individually and check the battery percentage indicator. Some users have mentioned that the alarms aren't loud enough during tests, but this is because the test is only intended to confirm connectivity and functionality at a lower level with different sound. As per the instructions, pressing and holding the physical button on each smoke alarm for over 10 to 15 seconds (can't remember how long) increases the volume to its maximum decibel level, and they are adequately loud, comparable to most smoke alarms.I have one smoke alarm in my kitchen and another on my upstairs landing. The kitchen alarm was triggered once due to a household member burning something while cooking, and it was very loud. I received an alert on my phone indicating smoke in the kitchen, and the upstairs alarm also went off. The alarms are performing their intended functions effectively. If you use HomeKit, you can set an automation to turn on all your HomeKit lights and lamps when any smoke alarm goes off, which is useful in case any fire happens at night and you need to see where you are going, providing additional peace of mind.I have not experienced any false alarms over the past two months of using these alarms. I hope this continues, and I definitely recommend these interlinked alarms.

The Meross smoke detector is delivered neatly packaged.Inside the box we find two screws to fix it to the wall, the fixing bracket and the detector (obviously) well protected by an additional layer of bubble wrap.This item arrives with the batteries included and sealed already inside the product.I have not tried to disassemble it but I believe that when they are exhausted, it will not be possible to replace them. However, the manufacturer declares 10 years of duration.The smoke detector itself is very nice and well made, definitely more beautiful than any other smoke detector seen around (personal opinion).The lines are simple and the materials above average. I very much appreciated that it is a nice matte white and not shiny. This makes it look a non-cheap and makes it suitable for almost any type of décor.Its dimensions are approximately 11.5cm in diameter and less than 2.5cm thick.After fixing the bracket to the wall, a rotation of the detector on the bracket will be enough to fix it. This will also cause the detector itself to be automatically turned on thanks to the switch located on the back and moved by the bracket itself.Trying to run the test, the emitted sound is on average loud but not the loudest of all and there is also a small flashing LED.Let's say 4.5 stars, it would be 4 because it is not possible to replace the battery but 5 because this has been clearly stated by the manufacturer.I really hope it will never be necessary to update this review to let you know if it worked or not :)