NEXX Garage NXG-100b Smart WiFi Remotely Control Existing Garage Opener with App, Compatible with Amazon Alexa, Google Assistant, No Hub Required, Black

I was nervous about connecting this up, but it was so simple! Now one thing i would get is nail in cable clips ( https://www.amazon.com/Cable-Matters-200-Pack-Nail-Clips/dp/B00Y362HSA/ref=sr_1_12?ie=UTF8&qid=1510831266&sr=8-12&keywords=wire+to+wall) because you will have a wire above your mechanical garage door you dont want to fall and get tangled. I had some from other projects which made this easy. Without them this would have been a run to hardware task!The other thing is the mount to the garage door. I was concerned and rightfully so. the small screws for that half of the sensor mount are to tiny to be useful to a steel door top which is not flat to begin with. Fortunately i had screws of various sized and was able to have two that worked well.I used a finishing nail to punch guide hole in steel top and used screws to mount. Since it was not smooth i had to also craft a small mounting block out of plastic to provide a solid spacer to the screws/mount.It actually worked better because i was able to then put the sensor closer and mount the wall sensor a bit higher on the wall (by a bit, im talking 1/4 inch, not a whole lot but it make clearances perfect and the top mount more solid than the small screws would have been.So additional to the nail clips for the wire (I did about every 2ft from wall to Garage Door Opener), you will want two screws and something about 1/4 inch to use as a spacer. (you can use the plastic wall mounts that go in a wall and clip ends if you need, that will allow a tight mount and consistent size on both screws to keep the sensor in perfect spot.The app works GREAT. The wifi has no issue at all connecting (i was worried that a garage through ceiling below a media room would have to much interference, but it connected easily and quickly!I love the logs it keeps, I have given this to all of the kids and wife and we have removed the remotes from cars. (no more worrying someone left car door unlocked to give someone access!)I have not been successful with proximity opening but to be fair, i tested it 1 time after i set everything up and never got around to figuring out why it didnt work. (there is an on/off in app and also a time of day option, im sure i did something wrong there)Overall, for the price you cant beat this!You can control the opener with Alexa (with or without a pin. I recommend with so someone doesn't come to your home while your away and yell at alexa through a window to open your garage, LOL)The voice control, opening with smart phone and log of who opened/closed and when is great.Also, if it is open it will send your phone a notification every 15 minutes until you close it or turn off that notification! Love that! No more having kids accidently leave it open and leave with friends to play or someone forgetting after bringing in groceries.Even with the "extra" items i had to get out of my things to make this work, from unbox to completion was just about 30 minutes give or take, including putting up ladder and tools afterwards. Definitely under an hour in any reasonably normal situation.check your opener for compatibility and if it is, and your wondering which to get, this IS THE ONE!I will add it took 5-10 of my 30 minutes to figure out the proper wiring. I have a chamberlain and there were 2 pairs, 4 wires and i wasnt sure which to pair with (not sure which was sensor pair and which was opener.) I took one pair out, went to panel and pushed button It did not open i knew i had right pair so twisted in wires, put back in, done. Had it been other pair it would have taken about 1-2 minutes more to switch LOLBut know that the instructions are not clear for all devices as mine had no screws, but had punch ins.which was confusing to make sure i paired right.But even with the three things (clips, 2 screws/spacer and wiring question) it was a FAST install and it works GREAT.I highly recommend to anyone wanting to add that functionallity

This is a great product.It is fairly simple to install although I had some difficulty putting the sensor on the garage door.It was simple to get the unit online. The app is clean and seems to work well, although there are some functions that aren't explained very well in the documentation, like "Enable Voice Notification" and what "Primary Device" is/does? I have made guesses and am probably right but maybe I'm not?I tried to screw one of the sensors to the steel garage door but failed. This is more likely representative of my failings at DIY than the fault of the manufacturer so no stars off. I did have much more luck just going with the supplied double-sided tape so hopefully that will keep everything where it needs to be. So far so good.The beta function of the auto-open (geofenced) is working well for me. A couple of glitches but they were down to me and after fixing the parameters in the app, it should work exactly as I want now.I find it very convenient to use the app to control the door up/down when I am working in my back yard (no backdoor from the garage to the backyard) and it is much faster and more convenient than using the numeric keypad (which barely works at the best of times anyway).One thing that could have been better would be for the manufacturer to stay on top of what openers it works with or does not work with. They kept telling me it probably would not work with mine but that I should jam a paperclip where the two wires from the door controller came in to the opener, to be sure. If the door began to cycle, then it worked. Fortunately, when I eventually stopped pestering them and did this, it did work. I wrote them back to tell them my make and model worked so hopefully they can add it to the list and save others the trouble of moving car, getting ladder, jamming paper clip in wiring etc.I am looking forward to some more functionality being added. It would be great to get an Apple Watch app for instance. The manufacturers at least say they are working on stuff like that and Apple HomeKit compatibility.Finally it is not often that my wife is as excited as I get about adding automation features to the house but she is very interested in this, so more points to the product.Update: January 25th, 2018I still love this device but some developments since I installed it last year.1) The sticky adhesive pad I was relying on failed in the cold of winter and the sensor with the wire fell out of it's place. The one on the door was still rock solid though. I temporarily reattached it and more on my permanent fix later.2) I started to get false alarms saying the door was open when it was not. Not fun when at work and no way of telling other than driving back to check. (I put a cloud-cam in there so I can remotely verify). I assume again it was the cold affecting the sensor distances from each other.Now to the good part.I wrote to NexxGarage support, asking just for the size of the self-tapping screws as I was going to attempt to attach the little sensors much better and they went above and beyond for me! I had misplaced the ones that shipped with it and had nothing that would fit the sensors.Instead of just getting the screw size for me to head to the DIY store, they sent me the four screws and the new plastic brackets they have recently been making. Unfortunately, my sensors were too small for these brackets and apparently the newer units are shipping with much larger sensors.Not to be stymied by this, when I let NexxGarage Support know, they sent me the new sensors!It was easy to configure the brackets for my particular door situation and I had everything swapped out and installed in about an hour. It all looks much better and should not be affected by the temperature changes.All in all, a great product and I was very impressed with the customer service. I highly recommend it!