5pcs Black Magnetic Reed Window Contact Sensor for Home Security

Goods DescriptionRecessed Door Contact This item is 5pcs pre- door magnetic alarms, which are used indoors and outdoors for an attractive installation.door access control They are ideal for mounting on wooden doors or .magnets for alarm sensors NOTE：This product is not suitable for Package Include5 x alarmsFeatures-Size: 2.3x1.9x1cm/0.9x0.75x0.39in-Material: Plastic + magnetic items-Color: Black- Designed to do embedded in door or window frame in door or window frames door opening alarm-Product Info:Door and window contact sensor-Note: Normally closed (conducting when merging, disconnecting when opening the door, connecting the alarm host.) window door sensors- Smaller sensors to seamlessly blend into your home recessed wired door window alarm.- Fits your needs and alert you of your home security window sensors security.- The door should be from the magnetic field source such as a freezer door alarm.- The product designed great for use in family and factory window, door. etc door magnets.

• Door handle vibration alarm--these door magnetic alarm are useful, practical, easy to install,electrical contacts for doors
• Door magnets--circuit is connected when magnet is closed,door window sensors reed
• Reed --fine polished, simple appearance, small size, easy to install,recessed wired door window alarm
• Window alarm sensors--smaller sensors to seamlessly blend into your home,door and window alarm
• Door alarms when opened--magnetic operated by an applied magnetic field,electrical equipment