Easy to Install Door Sensor - Reliable Home Security Solution

9V battery-powered magnetic switch alarm with instant alert function for door/window monitoring. Premium ABS housing with corrosion-resistant metal contacts ensures long-term durability. Precision-engineered magnetic alignment for seamless operation and minimal false alarms.

Ideal for home, office, or rental property security. DIY installation in minutes with adhesive backing or screw-mount options. Low battery indicator and adjustable sensitivity for customized protection. Compatible with most alarm systems or standalone use.

Wired connection provides stable signal transmission without interference. Compact design blends discreetly with door/window frames. Bulk order discounts available for property managers and security professionals.