Wireless Home Security burglar alarm, Magnetic Sensor Door Window Alarm, Super Loud 110dB, Pool Door Alarm for Kids Pack of 4
Condition: New
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Availability:
In Stock.
Arrives
Friday, Aug 28
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Features
- Loud 110dB-enough to scare the intruder or notify neighbors.Prevent Robbery.
- CHIME MODE - is ideal to prompt you when child, guests or dementia patients are opening the door.
- ALARM ACTIVATED - when the parts are separated, recombined stops.
- EASILY INSTALLATED - in pool doors/refrigerator/drawer/freezers/interior door for kids safety. battery can last longer.
- RELIABLE AND GREAT VALUE - 3xLR44 batteries included, also Low battery indicator.Value for money home security products. If you have any questions, please feel free to contact us. We are always here.
Color: White
Brand: HENDUN
Power Source: Battery Powered
Compatible Devices: Home Security System
Product Dimensions: 1.97"L x 1.57"W x 0.59"H
Power Source: Battery Powered
Compatible Devices: Home Security System
Battery Description: Alkaline
Number of Batteries: 3 LR44 batteries required. (included)
Voltage: 4.5 Volts
Control Method: Touch
Audible Noise: 110 Decibels
Mounting Type: self-adhesive
Sensor Technology: Contact Sensor
Color: White
Item Dimensions L x W x H: 1.97"L x 1.57"W x 0.59"H
Shape: Square
Brand: HENDUN
UPC: 664248632432
Item Weight: 35.4 Grams
Size: small
Manufacturer: Changzhou Hengdun Electronic Technology Co Ltd
Mfr Part Number: SF19
Model Number: SF19
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Friday, Aug 28
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
we have a 4 year old grand daughter that we don't go out in the yard by herself, as we have a pool. Installing these alarms are very simple as they are wireless. They are very loud for their size, with a simple on-off switch that we turn on when we have our grand daughter over. This is an inexpensive gadget that does the trick, and enhances safety.
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Reviewed in the United States on April 13, 2024 by Ralph P.
Very loud alarm and simple to install. Put the included batteries into the alarm, and then stick them on doors or gates with the included two sided tape. It can be flipped upside down to install on right or left openings. It has an on/off switch if you need to turn it off for a bit. I don't think it has different modes or settings. If it is turned on, and you open the gate or door, you get a loud blaring alarm. No bypass switch. I have these on my back door and another on my pool fence gate as a layer of safety for having little ones near water.
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Reviewed in the United States on July 2, 2019 by S. Ray
These alarms are VERY loud which is great, and they're easy to install EXCEPT for one thing...... If the window/door is flush with the frame it's a snap to install. I did 12 windows in about 5 minutes. However, I had to put these on 6 different exterior doors. Since one piece goes on the frame, and the other piece goes on the door there is a problem. My door frames are not flush with the wall. I think very few doors are. So I had to use extra mounting tape to make them even with each other. I'm not talking about an extra layer, I'm talking about close to a full INCH. Luckily I had a large roll of permanent outdoor mounting tape already, which I ended up using for everything and not using their mounting pads at all. Another issue with their mounting pads is if you remove it from the frame of your door or window it takes paint with it. The outdoor mounting tape is more reliable PLUS you can remove it with no damage to the surface. I bought the Scotch brand. Other than that I'm pleased and feel much safer now. I put them on every door and window in the house. Just know that you're probably going to have to modify one of the pieces when you install them on regular doors.
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Reviewed in the United States on August 12, 2019 by J. Wyatt
These are great and very loud. Batteries last a long time. Actually purchased more
Reviewed in the United States on August 25, 2025 by Tonia Mccutcheon
I have been using this product for the past six years. I decided to order two more packs so that way, it will cover every door and every windows in my house even though I have an alarm system. Most of the most burglary does not go through the door, they will go through windows versus front or back door and if they go through the windows. With this Little alarm system you please turn in your windows it is extremely loud and wake you up and give you time to prepare. The packages come with 4 alarm and battery included, I personally did not use their adhesive tape, I ordered my own 3M heavy-duty tape and it never fall off. I also made a video to let you hear how loud it is. Good luck!
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Reviewed in the United States on April 2, 2020 by A. W
Easy to install. Pretty darn loud. I put them on my windows, sliding door. Perfect for when I’m away or home. I do have one on my front door, but only active when home. -It’s just a on/off switch on the side. When you install make sure they even and level with each other. If you run into that problem, like I did. (Don’t return them) it’s a easy fix -find a piece of wood or plastic piece to size and glue together. I used super glue and a random piece of wood I found in my arts and crafts box. I really recommend these to anyone.. they are affordable and gives piece of mind.
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Reviewed in the United States on June 15, 2021 Reviewed in the United States on June 15, 2021 by Amazon Customer
The door close warning mode has no delay at all. The alarm starts going off immediately when you open the door. This mode is supposed to help when you forget to close the door. Not go off immediately.
Reviewed in the United States on April 7, 2023 by Rob Bart
Needed to install an alarm anytime someone opened a door. At first didn't have high expectations considering the price point, but it definitely beat it. There is also a switch so you can disarm the alarm as needed. It came with everything needed to get it up and running. The battery and double sided tape are included with each set. Would recommend wearing ear plugs during the initial install as its quite loud. Overall quite happy with my purchase.
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Reviewed in the United States on March 22, 2023 by DW