5pcs 5pcs Recessed Magnetic Reed Door Contact Sensor for Alarm Systems

Package List5 x alarmsFeatures-Size: 2.3x1.9x1cm/0.9x0.75x0.39in-Color: Black-Material: Plastic + magnetic items- Fine polished, simple appearance, small size, easy to install door alarms.- Can identify the opening and closing states, and realize alarm Security Door .- Made of high-quality plastic and magnetic material, durable to use door alarms when opened.-Note: Normally closed signal (conducting when merging, disconnecting when opening the door, connecting the alarm host.) door magnets- This contacts works with any access control or alarm system available embedded magnets.-Product Info:Door and window contact sensor- These door magnetic alarm are useful, practical, easy to install door access control.Goods Descriptionmagnetic safety door closing system These items are normally closed type designed, for use with alarm systems.door security devices Great for use in family and factory window, door.door alarms for home security, NOTE：This product is not suitable for

• Magnetic door alarm:these door magnetic alarm are useful, practical, easy to install,security and anti-theft door blocker
• Door and window alarm:circuit is connected when magnet is closed,door and window sensors
• Magnetic door :fits your needs and alert you of your home security,magnetic door closing system
• Door alarms:can identify the opening and closing states, and realize alarm,garage door alarm
• Door alarms for home security,:easy to install, easy to use,recessed wired door window alarm