5pcs Recessed Reed Door Alarm Contact Sensor for Home Security Systems

Goods Descriptionadjustable chime doorbell It is designed for use with alarm systems, great for use in family and factory window, door.door handle vibration alarm etc.intelligent door magnetic alarm Easy to install and use.sliding door alarm This item are 5pcs plastic reed which are operated by an applied magnetic field.door and window sensors NOTE：This product is not suitable for Features-Color: Black-Material: Plastic + magnetic items-Size: 2.3x1.9x1cm/0.9x0.75x0.39in- Circuit is connected when magnet is closed door alarms for home security,.- Magnetic operated by an applied magnetic field alarm magnetic reed .- Designed for use with alarm systems recessed wired door window alarm.-Note: Normally closed signal (conducting when merging, disconnecting when opening the door, connecting the alarm host.) upgraded portable door lock stop alarm-Product Info:Door and window contact sensor- contacts, very practical and useful door magnets.- Easy to install, easy to use door alarms.Package Include5 x alarms

• Recessed wired door window alarm:the product designed great for use in family and factory window, door etc​,window door sensors
• Door window alarms:smaller sensors to seamlessly blend into your home,alarm magnetic reed
• Personal alarm:designed for use with alarm systems,magnetic door closing system
• Sliding door alarm:the door magnet should be from the strong magnetic field interference source such as a ​,magnetic alarm
• Door alarms:these door magnetic alarm are useful, practical, easy to install,window alarm sensors