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Door Alarms
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Door Alarms

4.3· 5,969 reviews
$12.59
NEAR90-DAY LOW
LIMITEDHISTORY

Usually $13.29

Price checked today at 00:13 CT

Deal ends in 1d 13h

Worried about little ones wandering off? This simple alarm gives you a loud heads-up.

Verified by Agora · Price and availability shown are accurate as of the date/time indicated and are subject to change. Any price information displayed at the time of purchase on Amazon will apply. As an Amazon Associate, Agora earns from qualifying purchases.

Today's verdict
Worth a look
Deal confidence

What we've verified about this price

Current
$12.59
Typical
$13.29
90-day low
90-day low
Matches the lowest price we've tracked
NEAR90-DAY LOW
LIMITEDHISTORY
Price-tracked daily by AgoraPrice checked today at 00:13 CT
Agora's take

Our read on this product

This door alarm offers a straightforward way to get an audible alert when a door or window is opened, which can be incredibly reassuring for parents of young children or caregivers of individuals who might wander. It’s designed for simple peel-and-stick installation, meaning you can set it up in minutes without any tools or complex wiring, making it a practical addition to almost any entryway or sensitive area in your home. The 120dB siren is quite loud, intended to grab your attention immediately if a door is opened unexpectedly.

While it's effective for its primary purpose, it's worth noting that this alarm relies on the magnetic contact between two parts; it won't work well on surfaces that aren't relatively even and flush, so check your door or window frame before you buy. The ultra-thin design means it won't be overly conspicuous, and it comes with batteries included, which is a thoughtful touch that gets you up and running right away. It's a good option if you're looking for a simple, affordable way to add a layer of safety without investing in a full security system.

Why this one

What makes it stand out

  • Provides a loud, immediate audible alert directly at the entry point, unlike silent alarms.
  • Installs with adhesive tape, no wiring or screws needed, making it renter-friendly.
  • Offers a very affordable way to add a specific safety alert compared to full home security systems.
Think twice if...

When this isn't the right fit

  • You need a security system component that integrates with a larger network.
  • Your doors or windows have uneven frames that won't allow the sensor halves to align properly.
  • You're looking for a silent alert system or one that notifies your phone.
What owners notice

Real-world notes

  • The 120dB siren is genuinely loud and effective at getting attention.
  • Installation is very simple with the included adhesive tape, requiring no tools.
  • It's important to ensure the two sensor parts are aligned correctly for it to work.
  • The battery indicator helps you know when it's time to replace the LR44 batteries.
Bottom line

A confident pick for parents and caregivers needing a simple, loud alert for doors and windows.

Price history

How this price compares over time

Not enough tracked price history yet.