Features: Wireless Protection: The anti-thief wireless door alarm provides reliable security without the hassle of wiring, keeping your home or workshop safe from intruders. Immediate Alert System: With its intelligent sensor, this magnetic door alarm immediately notifies you of any abnormal door openings, ensuring prompt action to protect your space. Energy-Efficient Design: Featuring low power consumption, this door alarm sensor is an -friendly choice that provides long-lasting protection for your household or workspace. Versatile Application: Ideal for use in hallways, bathrooms, kitchens, and more, this intelligent household alarm sensor offers flexible security solutions for various areas of your home. Thoughtful Gift Option: Whether for friends, family, or neighbors, this anti-thief door magnetic alarm makes a practical and thoughtful gift that promotes safety and peace of mind. Specification: Material: Plastic Working voltage: 12V Power supply: 12V dry battery (included) Operating Temperature: -10-50C Size: 3.8*7.2*1.5cm Notes: Please allow slight tolerances in size due to manual measurement, and lighting in photography may result in a difference in color than in real. Include: 1*Door Sensor Detector System