Description:
Material: plastic.
Size: 53*35*20mm.
Color: show as pictures.
Powered by 3*AG13 battery(included).
Features:
* Magnetic sensor switch detects entry protecting your home or office whether you are in or out.
* Easily mounted by adhesive tape to window or door.
* Power by 3 x 1.5V LR44 button batteries(included).
* When people illegally open the case or windows, the alarm and attachment are separated, the alarm could be a strong siren to deter thieves.
* Widely used in internet bar, residence, office and store. The alarm volume could reach 105 dB.
Operation:
* Use the double side adhesive tape to fix the main unit at the side of the door / window.
* Attach the bar magnet to door frame / window frame with the arrow aligning with the reference line of the main unit.
* Test the setup by switching the system to "ON" position of the main unit and see whether the alarm can be triggered by opening the door / window

Package include:
1 * Magnet Sensor.
3 * button batteries.We are committed to create a comprehensive platform of vogue and health.Here to find the products you want.We will sincerely service for you.Hope you enjoy shopping time.We want to go that one step further and offer our personal shopping service to our customers. Everything we offer is focused on your budget and is individually tailored to your needs. We want you to have the best. Enjoy Shopping With Us!The Shipping time is about 2 weeks.You can leave the message first ,Our working time is Monday to Friday 9:00am-18:30pm.,we will reply you asap.