1 Set Wireless Door and Window Magnetic Sensor Alarm Quickly add a simple, effective layer of entry protection for doors and windows. This wireless magnetic sensor set detects when a door or window opens and activates an alert to help deter unauthorized entry and give you timely notice. Key benefits Immediate intrusion detection: Magnetic contact separation triggers the alarm when a door or window opens, helping you know when an entry event occurs. Easy installation and placement: Compact, low profile sensor and magnet fit most door and window frames and can be mounted discreetly without complex wiring. Flexible wireless operation: Wireless design lets you install sensors where wired systems are impractical, keeping your installation flexible and neat. Low power use and reliable performance: Designed for steady operation with low power consumption to extend service life between battery changes. Practical for many locations: Suitable for homes, apartments, offices, retail displays, and storage rooms where simple entry monitoring is needed. Function and features Magnetic contact sensing: The sensor and magnet form a contact switch. When they separate because a door or window opens, the sensor triggers an alarm condition. Wireless signaling: Sensor transmits the alarm signal without running wires, enabling quick deployment across multiple doors and windows. Compact, discreet housing: Small footprint keeps the unit visually unobtrusive on frames and sashes. Durable construction: Built from sturdy plastic housing designed for everyday indoor use. Compatibility and installation Compatible with standard door and window frames and with alarm systems that accept wireless magnetic sensors. Mounts on most wooden, metal, and plastic frames. Position the magnet and sensor so they align when the door or window is closed. Simple surface mounting using adhesive tape or small screws depending on the installation surface and preference. Typical applications Home entry points: Install on front and back doors or groundfloor windows to receive prompt alerts when an entry is opened. Office and retail protection: Use on storage closet doors, inventory cabinets, or display cases to monitor access during and outside business hours. Rental properties and apartments: Add a noninvasive monitoring layer without major modifications, ideal for landlords and tenants who need basic access alerts. What you get and what to expect One set containing the magnetic sensor and matching magnet sized for standard door and window installations. A straightforward, wire installation that provides consistent detection when the two parts separate. Practical performance for routine security needs without complex configuration. Who should choose this product Homeowners and renters who want a simple, noninvasive way to monitor doors and windows. Small business owners looking to detect unauthorized access to storage or display areas. Anyone needing an easy to install, wireless entry sensor that blends into doors and window frames. Technical notes Designed for indoor use on typical door and window geometries. For results, align sensor and magnet closely when closed and follow mounting guidance for secure fixation. Intended for basic intrusion notification and integration with compatible wireless alarm systems or standalone use where a sensortriggered alert is required.