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Door window alarms create an immediate alert system for unauthorized entry through any opening in your home or business. These wireless magnetic sensors attach to doors, windows, sliding glass doors, and other entry points, triggering a loud 120dB alarm when the magnetic contact breaks. Our selection includes basic door window alarms for single rooms, multi-zone systems that monitor several openings simultaneously, pool door safety alarms that meet residential codes, and bypass-detection models that alert you if someone tries to disable the sensor. Each unit runs on long-life batteries, installs without wiring, and provides instant notification when an entry point is breached.
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Each door window alarm uses a two-part magnetic sensor system. One piece mounts on the door or window frame, the other on the moving part. When the door or window opens and breaks the magnetic field, the alarm sounds immediately. Most units include a delay feature for normal entry and exit.
Single-zone door window alarms work well for specific high-risk entry points like basement doors or bedroom windows. Multi-zone systems let you monitor several doors and windows from one control unit, making them ideal for whole-room or whole-floor coverage where you want centralized monitoring.
Every door window alarm in our inventory comes from established security manufacturers with proven track records in residential and commercial applications. These aren't novelty items or temporary deterrents. They're built for consistent daily use with weatherproof housing, tamper-resistant mounting, and battery life measured in months, not weeks. We stand behind every unit with manufacturer warranties and responsive customer support when you need technical assistance or replacement parts.
How loud are door window alarms when they activate?
Most door window alarms produce 120 decibels, which is loud enough to wake sleeping residents and alert neighbors. This volume level is comparable to a smoke detector or car horn at close range.
Do door window alarms work on sliding glass doors and patio doors?
Yes, door window alarms work effectively on sliding doors, French doors, and patio doors. The magnetic sensors mount on both the stationary frame and the sliding panel, triggering when the door moves more than an inch.
How long do the batteries last in wireless door window alarms?
Battery life typically ranges from 12 to 18 months with normal use. Low-battery indicators give you advance warning when it's time to replace them, usually with standard AA or 9-volt batteries.
Can door window alarms be bypassed or disabled by intruders?
Basic models can be bypassed if someone knows exactly where the sensors are located. Bypass-detection door window alarms include tamper switches that trigger the alarm if someone tries to remove or disable the sensor.
Do these alarms work with existing home security systems?
Some door window alarms can integrate with existing security panels through wireless protocols, while others operate as standalone units. Check compatibility with your current system before purchasing if integration is important.
Are door window alarms suitable for renters or temporary installations?
Yes, wireless door window alarms install without permanent modification to doors or windows. They use adhesive mounting or small screws that leave minimal marks when removed, making them ideal for rental properties.
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