5pcs Embedded Magnetic Reed Contact Sensor for Home Security Alarm

Goods Descriptionsliding door alarm These items are normally closed type designed, for use with alarm systems.door and window alarm NOTE：This product is not suitable for .door handle vibration alarm Great for use in family and factory window, doorFeatures-Size: 2.3x1.9x1cm/0.9x0.75x0.39in-Color: Black-Material: Plastic + magnetic items- This contacts works with any access control or alarm system available travel door alarm.-Note: Normally closed signal (conducting when merging, disconnecting when opening the door, connecting the alarm host.) security door magnet- These door magnetic alarm are useful, practical, easy to install garage door alarm.- Fine polished, simple appearance, small size, easy to install alarm magnetic reed .-Product Info:Door and window contact sensor- Made of high-quality plastic and magnetic material, durable to use window door sensors.- Can identify the opening and closing states, and realize alarm window alarm sensors.Package Include5 x alarms

• Garage door alarm--contacts, very practical and useful,electrical equipment
• Electrical contacts for doors--the door magnet should be from the strong magnetic field interference source such as a ​,Security Door
• Door magnets--can identify the opening and closing states, and realize alarm,door window sensors reed
• Window alarm --designed to do embedded in door or window frame in door or window frames,adjustable chime doorbell
• Security door magnet--fine polished, simple appearance, small size, easy to install,Recessed Door Contact