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
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Availability:
In Stock.
Arrives
Saturday, Aug 8
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Features
- LOUD ALARM: The 120 DB security alarm is perfect for signaling to you when there is an unwanted entry. Audible at over 750 feet it sounds loud so the person knows they should stop what they are doing. Great for prevention, protect your childrens rooms or stop anyone from sneaking out or in.
- WIRELESS ALARM SENSOR: No wiring is necessary and 3 LR44 batteries are included in each device. Made to last 6 - 12 months these batteries in the alarms will be charged for extended periods of time. When its time to change, youll know. With the intuitive low battery indicator you can easily find out when youll have to change the batteries.
- EASY TO INSTALL: The wireless security alarms can be installed anywhere with an opening. Simply use the adhesive provided and tape it to wherever you need! Windows, doors, and entrances simple and straightforward with the alarm. The minimum distance for the device to work is 8mm (0.3 inches), so when installing make sure to get both pieces of the alarm as close as possible.
- SLEEK DESIGN FOR HOUSE- With an ultra slim build and sleek design these alarms can be put easily wherever you need them. Great for attaching to house doors, all types of apartments, and cabinet or office, put them where you see fit. They may be discreet and simple to install but dont be deceived these alarms pack a punch, ready to deter any unwanted actions.
- PACKAGE INCLUDED: 3 * Alarms with tapes (Batteries included), 2 * Anti-noise Ear plugs, 1 * User manual.
Color: White
Brand: Flyoukki
Power Source: Battery Powered
Compatible Devices: Home Security System
Product Dimensions: 1.5"L x 0.37"W x 2.9"H
Battery Description: Alkaline
Voltage: 1.5 Volts (DC)
Control Method: App, Touch
Noise Level: 1.2E+2 Decibels
Mounting Type: Door Mount
Maximum Range: 750 Feet
Sensor Technology: Contact Sensor
UPC: 619317730816 061931773081
Manufacturer: Flyoukki
Product Dimensions: 1.5 x 0.37 x 2.9 inches
Item Weight: 3.52 ounces
Item model number: MSA-820
Date First Available: June 7, 2019
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Saturday, Aug 8
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Item Package Quantity: 1
I purchased this for my father who has dementia, and let me tell you it is very loud and is extremely helpful. When he tries to open the door and wander the alarm makes him alert and he closes it immediately.
Reviewed in the United States on July 1, 2025 by Brendaliz
Item Package Quantity: 1
Easy to install, adhesive quality is very good.
Reviewed in the United States on August 7, 2025 by Vivi Wise
Item Package Quantity: 1
This definitely gives me a peace of my mind for living in a house w kids. I have this on all my doors. Very loud. Does the job.
Reviewed in the United States on August 26, 2025 by Amazon Customer
Item Package Quantity: 1
Just what was promised.loud, easy to install. Wish there were replacement adhesive strips,but effective
Reviewed in the United States on October 4, 2025 by David M.
Item Package Quantity: 1
The media could not be loaded. 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!
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Reviewed in the United States on June 11, 2022 by Madison Blair Madison Blair
Item Package Quantity: 1
Happy with the product overall, but there isn’t much room for error. I am definitely a believer in home security, whether you live in a “good” or “bad” area. Putting a basic alarm system up in the doors or windows is an easy and effective way to scare away intruders and give you fair warning of potential intruders. The only difficulty or issue I have had with my set is the lining up of the magnetic sensor. It may be a good thing in the grand scheme, but even the slightest deviation from the point of contact for the magnet will result in the alarm tripping and blaring from the door or window it is set on. This may make it necessary to “shim” with double sided tape to even the to pieces out. Good for apartments!
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Reviewed in the United States on September 5, 2023 by MKEK0305
Item Package Quantity: 1
The media could not be loaded. I bought this door alarm as extra protection for my home, and it really has a loud sound that you'd hear even if someone opened your door or window even while you were asleep. However, since it's battery-powered, you'll need to be careful to have extra batteries.
Reviewed in the United States on July 19, 2025 by migleny boulanger migleny boulanger
Item Package Quantity: 1
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?
Reviewed in the United States on October 16, 2025 by D