120 DB Loud Door and Window Open Alarm Sensor 3 Pack for Kids, Dementia Patients Safety, Burglar Anti-Theft Wireless Security Alarms Keep Your Home, Pool, Cabinet, Business Safe

Nice loud alarm but make sure you can attach it to your doors

Great solution for windows and doors access alarm. Easy to set!

We have struggled for years to get a full nights sleep, to keep our toddlers (2 & 4) in their room at night and out of things that aren’t safe, out of food they could choke on, etc. and we had unfortunately resorted to switching the doorknob to lock them in their room from 9pm-5am (the average hours they actually slept) and it weighed on my heart and mind heavily until I learned that not only is it a violation of several fire codes but could resort in CPS paying a visit. I did my research and found this alarm, I ordered it on Tuesday and it said it wouldn’t be here until Sunday. It got here Friday! I installed it, and realized that the doorframe sticks out roughly an inch from the door, so the magnet sensor wasn’t flush with the alarm. I didn’t have any spacers and it didn’t come with any, so I took a cardboard Amazon box, cut out 4 pieces that were the size of the alarm, taped them to together and made a spacer. It worked perfectly! A little tacky looking with my improving, but it does the job and that’s all I care about! Believe it or not, we laid the boys down at 8:30 (I also ordered blackout curtains for their room which got here Friday as well and hung those up hoping they wouldn’t pull them down and would sleep better)… after they heard that alarm when I turned it on, they literally went straight to sleep, didn’t talk to each other, get out of bed a single time, and I kid you not they stayed in their room until NINE AM!!! I’m shocked. Best sleep I’ve had in years. They opened their door this morning one time while I was nursing our youngest around 8:30am and immediately shut the door and ran to their bed! 🤣 I laughed SO hard and just pumped my fist in the air like a dweeb. I’m so thrilled! Now the only disclaimer I have- the package came with 3 alarms, I installed one in their room, one on the front door, and one on the back door. After I realized I needed a spacer for it to work, and made one myself and was reinstalling the one in the boys’ room, I pushed too hard on the alarm and sensor to make sure it stayed in place on the cardboard and ended up unfortunately messing it up to where it just made a crackling sound rather than a loud beeping 🤣😳😓 so I took the one off the back door and put it in their room, and I’ll order some more. So don’t push hard on them, that double stick tape has an extremely strong hold and doesn’t need a lot of pressure at all to stick good. Also if you have kids, place the alarm at the very top of the door where they can’t reach it. I am one happy mama and customer!

The high-pitched 120 DB sound is "alarming". As advertised. Good value. I have purchased three as gifts. Replacement batteries are difficult to find.

These came packaged in such a small box. I was a bit worried however, they were individually packaged, were easy to install and are exactly what we need for the doors - alerting us if a small child opened it. This is used as a pool alert for small children and boy is it loud! We mounted it high on each door, so the adult can turn it off before opening the door, but the child cannot access the kill-switch. Perfect! .

Use to many batteries

For the money this is exactly what I wanted. I can hear the alarm from our bedroom and it has a loud enough sound that it gives that sort of vibrating eardrum feeling when it goes off if you are standing next to it. Not nearly as loud as a buildings firealarm system but loud enough to hopefully scare someone off who shouldn't be coming in your house while you are sleeping. Understandably the chances of that are extremely low in most areas but for about $15 I'd say it's worth the purchase to just be prepared. Ketchup packet for scale. I will update my review if this ends up actually sucking but I doubt that, cheap and simple.

No Stars. Couldn’t get it to work on my door no matter what I did I could not get it to work. It will not install if your door is not leveled with the wall. Cannot have a door frame?

I bought 2 packs on this and it didn’t work. When you turn it on even there’s no sensor it’s making alarm.

Very loud and comes in handy

These work extremely well and are very loud. I installed in my apartment on my emergency exit door and my balcony door. I have a 2 year old nephew who has learned to open doors. I have traditional exterior doors on both these locations and the handles and dead bolts are a little lower than standard. Which make them perfect height for a 2 year old... while it's funny but not funny, after being successful at opening the balcony door with the standard door knob many times within seconds of stepping into the kitchen or answering the front door. The sudden, loud and alarming noise scared the hell out of my nephew and me. But happy to report that one time was enough to discourage him from opening doors he knows he's not allowed to open. #scaredstraight #IthinkIpooped

Much better than a previous set I purchased. These are very loud. I use them for security on our doors with our autistic son who like to run, the noise is so loud it startles him into shutting the door and he doesnt run anymore. Stopped checking the doors even after a couple tries and being startled. Very effective.

Super easy to set up. I wanted this because my toddler learned to open the front door. I want to be sure that if I'm in another room and she opens the door I'll know... and this alarm does the job! If I like that I can turn it on and off as well.