5pcs Embedded Window Door Contact Sensor Black Magnetic Reed Alarm

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

• Door opening alarm:designed for use with alarm systems,Window Alarms
• Door window sensors reed :easy to install, easy to use,window alarm sensors
• Electrical equipment:made of high-quality plastic and magnetic material, durable to use,door window alarms
• Personal alarm:magnetic operated by an applied magnetic field,embedded magnets
• Electrical contacts for doors:the door magnet should be from the strong magnetic field interference source such as a ​,door and window alarm