







🚪🔊 Stop intruders before they knock—security that fits in your pocket!
The Monsin Door Stop Alarm is a sleek, modern floor wedge that doubles as a door stopper and a 120dB security alarm with three adjustable sensitivity levels. Designed for easy, no-installation use, it offers reliable protection for homes, apartments, and travelers. Powered by a 9V battery (not included), each unit provides up to a year of security, making it a must-have for millennial professionals seeking smart, portable safety solutions.












| ASIN | B09DT8XLKL |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #1,624 in Office Products ( See Top 100 in Office Products ) #18 in Door Stops |
| Brand | Monsin |
| Color | Black |
| Customer Reviews | 4.5 4.5 out of 5 stars (3,770) |
| Date First Available | August 27, 2021 |
| Item Package Quantity | 1 |
| Item Weight | 14 ounces |
| Manufacturer | Monsin |
| Material | Rubber |
| Mounting Type | Floor Mount |
| Number of Pieces | 4 |
| Product Dimensions | 5.5"L x 1.8"W x 1.5"Th |
| Size | 4 Pack |
| Style | Modern |
| UPC | 747165831550 |
L**I
Awesome product!
Awesome. Definitely has served the purpose we needed it for. We are impressed with how well it holds the door placed on hardwood floor .....as well as...just how LOUD the 3 alarm settings are. We would purchase again and would recommend. Several people we've shown it to have said they were going to get one. Great value for the money. Easy for an 80 yr old woman to handle and use. Stopped the door with no problem. Altho small, quite sturdy. Clean sleek look.
A**R
Simplicity
So simple but so effective. The alarm is very loud.
J**K
Security protection.
It works very well. So pleased with the different levels of sounds. Thank you!!
N**E
Good sense of security.
Got these to have a better sense of security at hotel/motels. I place them wedged under each door. The alarm is really loud and you would be able to sleep through. The are very sturdy and have a rubber backing so they stay put and wont allow the door to open. Super easy to set up and put in place.
F**N
Very Satisfied
I love this product. The alarm is very loud when triggered. Highly recommend to anyone who lives alone
L**2
Makes hotel rooms more secure
We bought this to take with us to Vegas for the hotel room. We traveled with it in our carry on and had no trouble going through security to get on our plane with it completely turned off. It's quite small but extremely loud. It's compact enough that I just slid the door stopper in it's original box into a pouch in my backpack. When we got to our room, we realized there was an additional adjoining door. At night we slid the door stopper under the adjoining door and switched it on, and then placed a portable door lock we already had into the entry door. In the mornings we turned it off so it didn't get accidentally activated while we were gone. We felt so much safer bringing this little gadget with us, especially with that adjoining door. This probably wouldn't slow anybody down trying to force the door as well as portable door locks, but the loud alarm will sure let the entire hotel floor know it's been activated and give you valuable seconds to react. I would purchase another.
J**.
Warning
Great product, great for when traveling
T**.
It's loud and could scare off potential intruders.
This product does not fit under all doors. However, it's great if you have the right door.
U**Y
quality is not good, made from cheap material.
S**H
This sure would wake you with a shock and scare off anyone attempting to break in! Great for travel makes me feel safe in a hotel or motel knowing no one can get in without waking me
Y**A
作りがしっかりしています。電源をいれなくても普通のストッパーとして使用出来てよいです。夜間警報をを必要な使用時は「スイッチON」ですね。音は大きいです。大変満足な商品でした。
L**A
These are great and work really well.
L**.
Bought these after seeing them on tiktok and was a good price but I do wish they came with a battery I would have happily paid a bit more for that as the battery is not the normal size AA or AAA so bit of a hassle to go find the battery that fits. Looking forward to seeing if it will get through airport security as will be taking it on holiday to use in the hotel and airport security can be a bit funny about things sometimes.
Trustpilot
1 month ago
1 month ago