Fosmon WaveLink Add-On Wireless Door Entry Sensor Transmitter, Magnetic Doorbell Chime Sensor for Home, Store and Business Security, Receiver Required and Sold Separately

This little alarm offers something I never found at a low price. It lets you close your front door and arm it from outside. Likewise to reenter your home you disarm the alarm with the remote before entering. This beats the other 3 types of magnet alarms that I have tried over the last 2 or 3 years. A

Serves to let me know if my grandson sneaks out. He's not 2 yet can unlock deadbolt and door handle. I've had to add doorknob covers to help and keep him out of bathroom.

This is the best contact sensor door alarm! I bought a few other brands and they not near as well made and good as this Fosmon door alarm. The plastic is not flimsy like the others I bought; I could tell right away holding it in my hand it was better made!! So simple for my 73 old mom to operate. Install to 5 minutes. The alarm remote is simple and has clear visible instruction buttons. Also, it takes AAA batteries not silly button batteries, yeah!! Alarm works great!! I will be purchasing more.

I put this on my RV door in about 5 mins. It is slim enough to fit between the screen and the door. It was easy to install and I can use it at night while I am sleeping or when I leave. It's not meant to stop anyone but it will alert you! Just what I wanted.

I liked the fact that you need no tools for installing and it has a key chain remote for setting the thing that I don't like about it is that an intruder can turn the alarm down off of the main unit after entering the home the unit displays buttons for lowering and raising the sound of the alarm where it can be Lowered to where you can't hear it that setting should have been designed on the remote to do just saying

Perfect for letting us know when our child is opening the front or back door.

Works great. I use it for a dementia patient. Tries to leave without me knowing. Just what I needed.

Works well and has many different setting options. The only thing I wish was that there was a time delay between when you turn it on and the alarm. As is, it goes off every time you turn it on. Other than that, it has been helpful and serves the purpose we needed it for.

The motion detection worked the first three times I tried it, but then it stopped working completely. I called the manufacturer to see if they could get it working, but unfortunately, they could not. There was also no way to program the alarm sound to any of the 52 ringtones that comes on the device. It only would do the default setting tone. They offer to send me another one, but I did not trust that it would work.

It doesn't work; I don't recommend buying it.