WIRELESS Home Window Door Burglar Security ALARM System Sensor

Features: 

• Super loud 90 dB alarm 
• Convenience in installation--just peel and stick 
• Super environmental suitability and stability 
• Dustproof and insect prevention 
• Easily mounted by adhesive. Type to window or door. Ideal entry warning for homes, apartments, mobile homes, do rms, offices, hotel rooms, garages, and more! 
• Magnetic sensor switch detects entry protecting your home or office whether you are in or out 
• Operated by 2x 1.5V AAA batteries (not included)