Security Door Window Alarm, Wireless Sensor Door Window Burglar Alarm (4 Pack)
Quick take
This wireless contact alarm is built for a straightforward purpose: sound a loud warning (up to 90 dB) when a door or window opens. It is easiest to use as a kid-safety and entry reminder tool, with adhesive mounting and battery power. The biggest buying caveat is reliability variability reported by some buyers, plus the fact that a child may be able to switch the alarm off if they can reach it.
Pros and cons
Pros
- Loud audible alert rated up to 90 dB for quick attention
- Very simple setup, adhesive mounting, and on/off switch
- Compact and lightweight (about 3.4 x 1.1 x 0.6 inches) for doors and windows
- Works in multiple locations like homes, apartments, offices, and hotel rooms
Cons
- Some buyers report certain units may not work or stop working quickly
- Proper placement matters, the magnet and alarm must be within about 0.6 inches
- Not smart-home compatible, so it is not an app-based security system
What buyers think
Buyer-review evidence is mixed, with a clear split between “works well” experiences and reports of alarms that did not trigger reliably. Positive feedback commonly highlights that the alarm is easy to use and can be very loud when it goes off, which many parents describe as helpful for preventing door and window access by young children. Setup simplicity is also mentioned, especially the adhesive mounting approach and the general usability of the device. On the downside, some reviews note that a few alarms in a multi-pack either did not work after inserting new batteries or became unreliable shortly after being set up. Overall, the pattern suggests the product can be effective for the right placement and battery setup, but there is enough reliability variability that buyers should plan to test early and return or replace if something does not trigger as expected.
How this door and window alarm works
This is a contact-style alarm that triggers when the door or window is opened enough to break the close magnetic spacing between the alarm unit and its magnet. The manufacturer guidance emphasizes keeping the magnet and alarm within about 0.6 inches, which is an important detail if you are mounting on frames that flex slightly or have thicker trim. When triggered, it emits an audible warning intended to draw immediate attention.
Setup and daily usability
The intended setup is simple: turn the device on using the switch, insert batteries (2 AAA are required), and mount using the included double-sided tape. For best results, treat placement like part of the installation process. If the magnet sits too far from the alarm or if the door or window does not align consistently when closed, it may not trigger reliably when opened.
The device is also described as ultra-thin and portable, so it can make sense for temporary or multi-location use such as a rental, office, garage door, or a room you want to secure more than others.
Pros and cons for kid-safety and entry warning
When it fits well
- You want an immediate, loud reminder when a door or window is opened, not a silent sensor you only check later.
- You are securing higher-risk access points for kids, like doors leading out of a room or windows where opening could create a safety issue.
- You need something portable that does not require a hub, app, or complex installation.
Where buyers may feel let down
- Reliability can be hit or miss for some units in multi-packs, based on buyer feedback. If you buy, consider testing each alarm soon after installation.
- It is not designed to be tamper-proof. Some families report that children can potentially access and disable devices if the controls are reachable.
Key specifications to know before you buy
- Alert volume: up to 90 dB
- Sensor type: contact sensor (magnetic spacing)
- Power: battery powered, requires 2 AAA batteries (not included in the box)
- Mounting: door mount, adhesive installation
- Smart home compatibility: not smart-home compatible
- Range requirement: magnet and alarm placement should be within about 0.6 inches
- Size: about 3.4 x 1.1 x 0.6 inches
- Pack size: 4 units
Price and availability
This model is positioned as an affordable, basic alarm option, commonly sold as a multi-pack. Because pricing can vary by retailer and pack configuration, it is worth checking the latest listing price and whether you are getting the intended quantity (4 units).
Verdict: is it worth it?
The Security Door Window Alarm (4 pack) is a practical choice if you want a loud, simple warning for doors and windows, especially for kid-safety and immediate awareness. Its adhesive setup, compact size, and 90 dB alert make it easy to deploy quickly across rooms. However, buyer feedback suggests reliability may vary by unit, and proper magnet placement is critical. If you need a more integrated, app-based security system or you cannot test and replace non-triggering units, you may want to look for a more dependable category option with smarter monitoring instead.
FAQs
How loud is the door and window alarm?
It is rated up to 90 dB, designed to be clearly audible when the door or window is opened far enough to trigger the contact sensor.
What batteries does it use?
It requires 2 AAA batteries (batteries are not included in the box).
Do I need a hub or a phone app?
No. This alarm is not smart-home compatible, so it works as a standalone contact alarm.
What is the magnet spacing requirement?
For reliable triggering, the magnet and alarm should be within about 0.6 inches when the door or window is closed.
Is this good for preventing kids from opening doors?
Many buyers use it for exactly that purpose, because it provides a loud warning. Keep in mind that if a child can reach the device controls, they may be able to turn it off.
Why might an alarm not trigger?
Common causes include magnet placement that is too far from the alarm, incorrect alignment on the door or window frame, or batteries not functioning properly. Some buyers also report that certain units may not work reliably, so testing early is important.
Specifications
| Product Title | Security Door Window Alarm, Wireless Sensor Door Window Burglar Alarm, Door Alarms for Kids Safety, Easy Installation Doorbell Alarms for Office House Window Pool (4 Pack) |
|---|---|
| Category | Electronics > Security & Surveillance > Home Security Systems |
| Brand | PLOJOP |
| Manufacturer | PLOJOP |
| Model Number | shou-Door Alarm |
| Color | white |
| Size | 3.4 x 1.1 x 0.6 inches |
| Item Weight | 0.18 Kilograms |
| Product Dimensions | 3.4"L x 1.1"W x 0.6"H |
| Power Source | Battery Powered |
| Battery Description | AAA |
| Number of Batteries | 2 AA batteries required. |
| Control Method | Voice |
| Audible Noise | 90 Decibels |
| Mounting Type | Door Mount |
| Maximum Range | 0.6 Inches |
| Sensor Technology | Contact Sensor |
| Smart Home Compatibility | Not Smart Home Compatible |
| Item Dimensions L x W x H | 3.4"L x 1.1"W x 0.6"H |
| UPC | 770642268488 |
| Mfr Part Number | shou-Door Alarm |
| Unit Count | 4.0 Count |
| Item Type Name | shou-Door Alarm |
| Built-In Media | NO |
Available variants
Style
- 4 Pack
- 20 Pack
- 24 Pack
- 2 Pack
- 8 Pack
- 6 Pack
- 16 Pack
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