Features: 

New and high quality

Super loud 95 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

Warning door / window sticker is supplied free in package

 Operated by 3pcs of 1. 5V LR44 / AG 13 button cell ( included )

 Specifications:

 Sensor type: alarm

 Alarm type: sound

Material: plastic

 Color: White

 Size: 2.5 x 1.3 x 0.8 inch

Included:

12 x Magnetic Sensor

12 x Magnetic Stick

 36x LR44 Button Battery