5pcs Recessed Magnetic Reed Window Alarm Contact Sensor

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

• Alarm magnetic reed --the door magnet should be from the strong magnetic field interference source such as a ​,Security Door
• Door and window sensors--made of high-quality plastic and magnetic material, durable to use,sliding door alarm
• Window alarm sensors--circuit is connected when magnet is closed,upgraded portable door lock stop alarm
• Window sensors security--smaller sensors to seamlessly blend into your home,door and window alarm
• Door access control--easy to install, easy to use,Window Alarm