WIRELESS Home Window Door Burglar Security ALARM System Magnetic Sensor

WIRELESS Home Window Door Burglar Security ALARM System Magnetic Sensor Features: 1. New and high quality 2. Super loud 90 dB alarm 3. Convenience in installation--just peel and stick 4. Super environmental suitability and stability 5. Dustproof and insect prevention 6. 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! 7. Magnetic sensor switch detects entry protecting your home or office whether you are in or out 8. Operated by 3pcs of 1. 5V LR44 / AG 13 button cell ( included ) Specifications: 1.Sensor type: alarm 2.Alarm type: sound 3.Material: plastic 4.Color: White 5.Size: 60 x 30 x 20mm Package Included: 1x Magnetic Sensor 1 x Magnetic Stick 3x LR44 Button Battery