Door and Window Alarm Sensor 2-Pack, 90dB Magnetic Security Sensors, Battery Operated Wireless Alarms, Easy Peel-and-Stick Installation, On/Off Switch, Sliding Glass Door Compatible, Home Security

In my decades working with home security, I have learned that the most successful systems are the ones that are actually used. These door and window alarm sensors represent that principle perfectly—they are so simple to install and use that there is no excuse not to protect your entry points. Whether you are securing a first-floor window, a sliding glass door, or a frequently used side entrance, these magnetic sensors give you reliable detection at an affordable price.

Who These Alarm Sensors Are Best For:

• Homeowners looking to add basic perimeter detection without expensive systems
• Renters who need removable security that does not damage property
• Parents monitoring children’s access to specific doors or rooms
• Anyone expanding existing security coverage to additional entry points

Key Features: These sensors use magnetic contact technology that has been the foundation of security systems for generations. One part attaches to the door or window frame, the other to the door or window itself. When the two parts are aligned, a magnetic connection keeps the alarm silent. The moment someone separates them by opening the door or window, the circuit breaks and the 90-decibel alarm sounds—loud enough to alert everyone nearby and send intruders fleeing.

Installation could not be easier. Peel off the adhesive backing, press the sensor firmly onto clean, dry surfaces, and you are done. No tools, no drilling, no running wires through your walls. This makes them perfect for rental properties where permanent modifications are not allowed, and equally perfect for homeowners who want security without the hassle of complex installation. The built-in on/off switch means you can disable the alarm when you need to open a protected window for fresh air or use a door during the day, then reactivate it when you want protection.

Practical Details: Each sensor measures 2.5 inches by 1.75 inches by 0.75 inches, making them compact enough to blend into most door and window frames without being obtrusive. They operate on three 1.5V LR44/AG13 button cell batteries (included for both units), providing months of reliable operation. The 90-decibel alarm is loud enough to wake sleeping family members and alert neighbors. White color matches most door frames and trim. Backed by a 1-year manufacturer warranty from Safety Technology.

Protect your entry points with proven magnetic sensor technology—get your two-pack today. Be Prepared and Be Safe!