Personal Safety, Simplified • Effective at Close Range • Discreet Enough for Any Bag or Pocket • USA-Based Support
Personal Safety, Simplified • Effective at Close Range • Discreet Enough for Any Bag or Pocket • USA-Based Support
DIY door and window alarms are your first line of defense against unauthorized entry. Each sensor triggers a loud siren — 90 to 120dB — the instant a door or window is opened without warning. Battery-powered and adhesive-mounted, these install in under two minutes with zero tools and zero monthly fees. Whether you’re securing a rental, a hotel room, or your entire home, there’s a sensor in this lineup built for exactly that situation.
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Magnetic sensors — like the 90dB 2-Pack — are your go-to for standard doors and sliding glass. They trigger the moment the two halves separate. Glass break alarms work differently: they detect the vibration signature of impact or breakage, making them a smart add-on for windows that don't open and wouldn't trigger a magnetic sensor. The door stop alarm doubles as a physical barrier — it wedges under the door and blasts a siren if someone forces entry, which makes it the right call for hotel rooms and dorms. The barking dog alarm is a deterrence play — radar-activated audio that signals an occupied, protected space before anyone tests a lock.
A silent house is an easy target. Loud, unexpected noise buys you time and disrupts the threat's plan. Burglars and intruders depend on speed and quiet — a 120dB alarm eliminates both. These sensors don't replace situational awareness or a solid door lock, but they cover the gap between "someone's trying to get in" and "you know about it." That gap is where most break-ins succeed.
Every DIY door and window alarm we carry ships battery-included and ready to install. No accounts to create, no hubs to pair, no app required. Mount with the included adhesive, test the trigger, and you're covered. If you have questions during setup, our USA-based support team is reachable by phone. Orders over $25 ship free, and if a product isn't performing as described, we'll make it right.
Q: Will these DIY door and window alarms work without WiFi or a smart home hub?
Yes — every alarm in this lineup is fully standalone. No WiFi, no Bluetooth, no hub, no app. The sensor detects the trigger condition and the onboard siren fires. That's it. Simpler systems fail less often.
Q: How loud are these alarms, and will neighbors actually hear them?
The lineup ranges from 90dB to 120dB. For reference, 90dB is roughly the volume of a power lawn mower; 120dB hits close to a jet engine at distance. In a residential setting, that's loud enough to be heard through walls and wake a sleeping household. The goal isn't just notification — it's disruption of the threat.
Q: Can renters install these without damaging walls or doors?
Yes. The magnetic door/window sensors and glass break alarms use adhesive mounting — no screws, no drilling, no permanent modification. The door stop alarm requires no installation at all; it sits on the floor. These are specifically the right tool for renters, apartment dwellers, and anyone in temporary housing.
Q: What's the difference between a magnetic sensor and a glass break alarm?
Magnetic sensors trigger when the two-piece sensor halves separate — so they cover operable doors and windows that open. Glass break alarms detect vibration, so they protect fixed windows that don't open and wouldn't trigger a magnetic sensor. For solid coverage, use both types: magnetic on everything that opens, glass break on fixed panes.
Q: How long do the batteries last in these door and window alarms?
Battery life varies by model and use frequency, but most sensors in this lineup run six months to a year on standby. The door stop alarm and portable door guard run on standard batteries available anywhere. Swap them annually as a habit — treat it like testing your smoke detectors.
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